F1 generation is the first filial generation, whereas F2 generation is the second filial generation obtained by crossing the F1 generation.
F1 is the first filial generation obtained by crossing two different parents. The parents are different from one another; one is homozygous dominant for both qualities, while the other is homozygous recessive. For both features, all of the progeny exhibit dominant traits. It is crucial for hybridization because it produces offspring with the best traits from both parents. Outbreeding depression, or decreased fitness in the progeny as a result of a cross between two distant parents, is occasionally observed in the F1 generation.
The F1 generation was self-crossed to produce the second filial generation. Both features are heterozygous in the parents. The generation displays a 9:3:3:1 phenotypic ratio. It is crucial for preserving a pure line or for keeping the qualities stable across several generations. Inbreeding depression in the F2 generation, when the offspring have a lower survival and fertility rate, might result from ongoing inbreeding of the F1 generation.
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what percentage of chromosomes normally found in the body cells of an organism do gamete cells contain after meiosis?
The gamete cells contain 50% of the chromosomes found in the body cells of an organism after meiosis.
Meiosis is basically a type of cell division which occurs in the sexually reproducing organisms. This division is observed during the formation of gametes and results in the reduction of the chromosomes in the gametes.
The normal body cells in our body diploid in nature. This means that they contain two complete sets of chromosomes, that is, 23 pairs of chromosomes. When a gamete is formed due to meiotic division, only one half of the chromosome complement is passed on from the parent and therefore the germ cell will contain 50% of the chromosomes found in the body cells of an organism after meiosis.
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What data or test would you seek to determine whether or not a trait is sex linked? Select one: a. karyotype b. pedigree c. blood test d. DNA sequence
B) You would seek to determine whether a trait is sex-related using pedigree data or a test.
From a pedigree, how can you tell if a trait is sex-linked?A sex-linked pedigree will primarily have affected males, and the female carriers will typically be marked with a half-shaded circle.
In a pedigree, how can you tell if a sex-linked trait is dominant or recessive?The son must have only inherited his allele from his mother if the trait is x-linked, and the father may not be affected. RECEPTIVE WITH X-LINKS: The disease must be X-linked recessive when a affected non-founding son has two parents who are unaffected.
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Substance X was isolated in a urine sample, but it is too big to pass through the glomerular filtration membrane. How is this possible
It was secreted later in the distal tubule. Erythrocytes (red blood cells) should not be seen in urine since they cannot pass past the filtration barrier.
Their existence implies the presence of illness or infection. Leukocytes are immunological cells that should not be seen in urine.
The filtration membrane allows water and tiny solutes to flow through while blocking blood cells and big proteins. These substances persist in the bloodstream. The filtrate (the fluid that has gone through the membrane) flows farther into the nephron from the glomerular capsule.
Urine dipsticks use chemical analysis to give qualitative examination of several analytes in urine. Dipstick detects the presence of protein, glucose, blood, ketones, bilirubin, urobilinogen, nitrite, and leukocyte esterase using dry chemical procedures.
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When is the best time to clean your boat to stop the spread of aquatic nuisance species?
The best time to clean your boat to stop the spread of aquatic nuisance species is during every time you leave the water.
Guidelines for Halting the Spread of Aquatic Pest Species
Avoid using your boat's propeller to cut down any vegetation.Before leaving any body of water, clear the boat, propeller, anchor, lines, and trailer of any visible aquatic vegetation.Before leaving the site, empty the bait buckets and live wells into appropriate containers.Waterborne Nuisance Species are species that negatively affect aquatic environments or activities that rely on them, including aquaculture, agriculture, or recreation. Zebra mussels, quagga mussels , and hydrilla are just a few of the aquatic invasive species that frequently travel between rivers aboard boats and trailers. These creatures multiply when introduced into new waters, displacing local species and harming the water supply.
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A curriculum developed by an outside group for use by others is called a(n) _________.
a. peer reviewed program
b. canned program
c. independent program
d. culturally competent program
A curriculum developed by an outside group for use by others is called a canned program. So option b is correct.
A canned program is a pre-packaged curriculum that is designed and developed by an outside organization or group. It is then made available for use by other individuals or organizations without the need for significant modification or customization.
Canned programs are often used in education, where they are commonly used by schools or school districts to provide a standardized curriculum for students. They are also used in other fields, such as business and healthcare, where they provide a set of guidelines and procedures that are intended to be followed by employees or practitioners.
Canned programs are often developed by experts in a particular field, such as educators or subject matter experts, and are based on current research and best practices. They can be a valuable resource for organizations that do not have the resources or expertise to develop their own curriculum.
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external features used to classify plants
External features that used to classify plants :-
1.Leaf shape and arrangement: Leaves can be classified based on their shape, such as being oblong, elliptical, or lobed, as well as how they are arranged on the stem, such as being alternate or opposite.
2.Flower structure and color: The shape and color of flowers are used to classify plants. For example, some plants have large, showy flowers with bright colors, while others have small, inconspicuous flowers.
3.Stem characteristics: The shape and texture of a plant's stem can also be used to classify it. Some plants have woody stems, while others have herbaceous (non-woody) stems.
4.Fruit and seed characteristics: The size, shape, and color of a plant's fruit and seeds can be used to classify it. Some plants have large, fleshy fruits, while others have small, dry seeds.
5.Bark characteristics: Trees can be classified based on their bark. Some have rough, scaly bark while others have smooth, shiny bark.
6.Root system: Some plants have deep roots, while others have shallow roots. This is a useful characteristic in identifying certain types of plants.
7.Habitat: Some plants are aquatic while others are terrestrial and this is a valuable trait in identifying them.
8.Size and form: Some plants are shrubs, others are trees, and others are herbaceous, this feature also helps in identifying them.
Complete question:-
What are the external features that used to classify plants?
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explain the different types of roots
Plants have three types of root systems: 1.) taproot, with a main taproot that is larger and grows faster than the branch roots; 2.) fibrous, with all roots about the same size; 3.) adventitious, roots that form on any plant part other than the roots. ! :]
In third-degree AV block, there is no electrical communication between the atria and ventricles, so there is no relationship between the P waves and the _________.
In third-degree, or complete, heart block there is a shortfall of AV nodal conduction, and the P waves are never connected with the QRS edifices. At the end of the day, the supraventricular driving forces produced don't lead to the ventricles.
Third-degree AV block demonstrates a total loss of correspondence between the atria and the ventricles. Without fitting conduction through the AV hub, the SA hub can't act to control the pulse, and heart result can reduce auxiliary to loss of coordination of the atria and the ventricles.
Electrical signs don't go from your atria to your ventricles with this kind. There is a finished disappointment in electrical conduction. This can bring about no heartbeat or a listless heartbeat on the off chance that a reinforcement pulse is available.
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How many days Monggo seeds grow?
The Monggo seeds require 3-4 months of time to reach the stage of maturity from their initial seed stage.
Monggos is another name for the mung beans also known by the scientific name Vigna radiata. These are green colored lentils that belong to the legume family. The main regions where the cultivation of mung beans takes place is East, Southeast and South Asia.
Seed is the initial stage of any plant. It is the fertilized ovule that remains undeveloped as a plant. A seed has the potential to remain dormant for various years. It however possesses all the necessary enzymes and nutrients for its growth and development into a mature plant.
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Why did the husband become terrified in the world on turtle's back?
In the beginning of "The World on Turtle's Back," we can see that a character named just as "husband" is terrified of being punished for having destroyed the sacred tree that lit up the world where he lived.
"The World on Turtle's Back," is a myth created by the Iroquois to explain the origin of the earth and living things. In this myth, we can see:
There was a realm above the heavens that was created even before the earth was created.
This realm was inhabited by magical beings who did not die, grow old, or get sick. They were called the people of heaven.
There was a tree in the center of that realm that was holy.
The tree lit up the entire kingdom, since the sun did not exist.
One day, one of the women of the heavenly realm discovered that she was pregnant with twins. She is very happy and tells her husband, but he is furious with the news, to the point of pulling the sacred tree from the ground. This causes a hole and he throws his pregnant wife into that hole.
The man is terrified, not because he threw his wife to an unknown end, but because he destroyed the sacred tree and is afraid of being punished.
Despite the fall, the woman survives and gives birth to the twins who will create all the elements of planet earth.
With this, we can conclude that the Iroquois also created myths to explain things they did not know, such as the origin of the planet and human beings.
Your question is incomplete most probably your full question was
In the beginning of "The World on Turtle's Back," why did the husband become "terrified"? He was terrified the he might never see his wife again. He was terrified that his wife might fall through the hole in the sky. He was terrified that he would be punished for marring a sacred tree. He was terrified that the Great Tree would fall into the ocean.
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Although genetic mutations may occur spontaneously in organisms, the incidence of such mutations may be increased by
Although genetic mutations may occur spontaneously in organisms, the incidence of such mutations may be increased by Mutagenic agents.
Mutagenic compounds, commonly referred to as mutagens, are what cause mutations. A mutagen is a substance that increases the frequency at which mutations happen. The process through which a mutagen causes mutations is known as mutagenesis.
The term "mutation" is frequently used to describe an inherited change in DNA structure that does not result via genetic recombination. An organism with one or more mutated genes is referred to as a mutant. A mutation may change a gene's mode of expression, changing the mutant's phenotype from the one it originally assumed. Mutations can be either spontaneous or induced. Using mutation interrogation techniques, only the presence or absence of known DNA sequence changes may be determined. In lab settings, they are used to analyse a particular group of CFTR mutations that make up a CF test panel.
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How is ATP made from glucose?
Glucose is converted into ATP by cellular respiration.During glycolysis, a glucose molecule with six carbon atoms is converted into two molecules of pyruvate, each of which contains three carbon atoms.
The metabolic process known as cellular respiration, which takes place inside of cells, releases energy and waste products by converting biochemical energy from meals into the chemical compound adenosine triphosphate (ATP).
Cellular respiration transforms glucose into ATP.The aerobic respiration of one glucose molecule in the cytoplasm and mitochondria results in the production of 38 ATP molecules.
Glycolysis, the Krebs cycle, and oxidative phosphorylation are processes that take place during cellular respiration.
Two molecules of pyruvate, each having three carbon atoms, are produced during glycolysis from a single glucose molecule with six carbon atoms. Two molecules of ATP are hydrolyzed to give energy for the initial stages for every molecule of glucose, but four molecules of ATP are created in the later processes.
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What are the genotypes of the F2 generation?
Answer:
The genotypes of the F2 generation depend on the genotypes of the parents in the F1 generation.
Explanation:
If the F1 generation is produced by crossing two individuals with different genotypes, the F2 generation will have a variety of genotypes.
For example, if the F1 generation is produced by crossing a homozygous dominant individual (AA) with a homozygous recessive individual (aa), the F2 generation will have a 1:2:1 ratio of genotypes: one quarter will be homozygous dominant (AA), half will be heterozygous (Aa), and one quarter will be homozygous recessive (aa).
If the F1 generation is produced by crossing two heterozygous individuals (Aa and Aa), the F2 generation will have a 3:1 ratio of genotypes: three quarters will be heterozygous (Aa) and one quarter will be homozygous recessive (aa).
It is also possible for the F1 generation to be produced by crossing two individuals with more complex genotypes, in which case the F2 generation will have a variety of genotypes based on the combination of the parents' genotypes.
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Which of the following is the most likely reason that the greatest number of extinctions of bird species occurred in the period 1901-2000
Increased environmental disturbances from human activities and altered bird habitats are the main reason behind the extinction of bird species between 1901-2000.
Between 1901 and 2000, 90 more mammal species went extinct than between 1801 and 1900. Environmental issues caused by human activities have gotten worse Changes in bird habitats between 1901 and 2000 was the main factor in the demise of numerous bird species.
When something is eradicated, it ceases to exist. There could be a lot of reasons for it, such as the extinction of some species as a result of overhunting, a lack of food, or natural disasters.
The mass extinction, which has only occurred five times throughout history, comes first. There are essentially two types of extinction. The second factor is background extinctions, which occur over a longer period of time and have a considerable impact on the pace of natural extinction.
The complete question is:
Which of the following is the most likely reason that the greatest number of extinctions of bird species occurred in the period 1901-2000?
(a). Increased environmental disturbances from human activities altered bird habitats.
(b). Deforestation
(c). Creating wildlife refugees
(d). species richness
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Which of the following is the origin of almost all the large moons around the jovian planets? A) They are captured asteroids.
B) They are captured comets.
C) They are captured planets.
D) They were formed by condensation and accretion in a disk of gas around the planet.
E) They were formed by giant impacts.
The origin of almost all the large moons around the jovian planets is D) They were formed by condensation and accretion in a disk of gas around the planet. This is known as the nebular theory.
This theory states that when a new star forms in the universe, it is surrounded by a disk of gas and dust. This disk of gas and dust can form planets and moons around the star
For the jovian planets, this disk of gas and dust is around the planet, rather than the star. As the planet forms and cools, particles in the disk condense and form gas and dust clouds. These clouds eventually form into larger objects which then accrete or collide to form moons around the planet.
This process of condensation and accretion has been observed in various star-forming regions, confirming the nebular theory and making it the most likely source for the large moons of the jovian planets.
The other possible origins of the moons, such as captured asteroids, comets, or planets, cannot be ruled out as some of the moons may have originated from these sources. However, the majority of the moons are believed to have formed from the process of condensation and accretion in a disk of gas around the planet.
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Why must cells have an upper and lower limit to their size?
Cells are the basic building blocks of life and, as such, are essential for the functioning of all living organisms. For that reason, it is important for cells to have an upper and lower limit to their size. These limits serve vital roles in cell structure, function, and metabolism.
The upper limit to cell size is important because too large of a cell can cause problems with cellular communication and the distribution of nutrients throughout the cell. In general, larger cells are more difficult to maintain, as they require more energy and resources to sustain their structure. If a cell exceeds its upper limit, it becomes too big to be supported by the metabolic resources available to it and eventually dies.
The lower limit is also important for cellular function. Cells that are too small have difficulty forming necessary structures and have a harder time performing certain metabolic processes. This is because small cells are limited in the number of organelles they can contain and the number of molecules they can process. Small cells are also less efficient in their use of energy and resources, making it difficult for them to survive in certain environments.
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When fungal buds remain attached in a row following cell division, the resulting chains of yeast cells are called ______
When fungal buds remain attached in a row following cell division, the resulting chains of yeast cells are called Pseudohyphae.
Yeast cells form chains called Pseudohyphae when fungal buds remain attached in a row after cell division. This type of chain formation allows for the growth and expansion of fungi in an environment, helping them to survive and thrive.
Pseudohyphae can be found in a variety of different fungi, including Candida albicans and Cryptococcus neoformans.
Understanding the formation of Pseudohyphae is important in order to monitor and control the growth and spread of fungi.
Pseudohyphae can be an indication of a fungal infection, and are typically associated with Candida yeast species. The formation of Pseudohyphae can be used to help diagnose a fungal infection and provide further information about the type of fungus involved.
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What are some factors that increase the chance of a genetic mutation happening in your cells?
Errors in replication, exposure to ultraviolet radiation and exposure to chemicals are some factors that increase the chance of a genetic mutation happening in your cells.
A mutation or a genetic mutation is basically a change in the DNA sequence of a gene which leads to the production of something different. It is able to create a permanent change to that particular gene's DNA sequence. Genetic variations are although important as they allow evolution in humans. They can also sometimes cause genetic disorders.
Replication is the process by which the DNA replicates itself. Sometimes errors happen in replication which can change the sequence of the DNA and cause mutations. Exposure to some environmental chemicals and also to ultraviolet radiation can cause mutation and alter the DNA sequence.
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Please help me with biology works
I need this ASAP
Answer:
H
Explanation:
I can’t even see the questions
Why do cloned calico cats look different?
Answer:
Even with the exact same genetic make-up, a calico cat’s coloration would be different than her twin’s because it’s random whether a cell codes for orange or black fur. The same goes for clones.
Explanation:
question what was the name of the gene that was affected by this condition . Tell the function of this gene-what does it code for be very specific
The gene affected by this condition is known as the KCNH2 gene. This gene is located on the long arm of chromosome 7 and encodes a voltage-gated potassium channel.
The voltage-gated potassium channel is an integral membrane protein that is responsible for controlling the flow of potassium ions into and out of cells.
The KCNH2 gene is important for the normal functioning of cells in the body. It is essential for the maintenance of the resting membrane potential by regulating the flow of potassium ions. It is also involved in mediating the electrical activity of the heart and plays a critical role in cardiac repolarization. Mutations in the KCNH2 gene can lead to a variety of cardiac arrhythmias and other cardiac conditions, including long QT syndrome.
Long QT syndrome is a genetic disorder that affects the electrical activity of the heart and can cause syncope, cardiac arrest, and even sudden death. The KCNH2 gene is one of the genes that has been linked to this disorder. Mutations in this gene affect the normal functioning of the voltage-gated potassium channel, which can lead to a prolonged QT interval on an electrocardiogram (ECG). This can result in an increased risk of life-threatening arrhythmias and cardiac arrest.
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Elena paints the back of the second aquarium it has a height of 1 3/4 feet the painted area is 5 5/6 square feet what is its length
Answer:
3 1/3 ft
Explanation:
You want to know the length of an area that totals 5 5/6 square feet and is 1 3/4 feet high.
AreaThe formula for the area of a rectangle is ...
A = LW
Filling in the given values, we have ...
5 5/6 = L·(1 3/4)
Solving for L gives ...
L = (35/6)/(7/4) = (35/6)(4/7) = 140/42 = 10/3 = 3 1/3
The length of the painted area is 3 1/3 feet.
__
Additional comment
You might be asked to write the answer as a fraction: 10/3, or as a decimal: 3.33. In the latter case, you may need to round to tenths: 3.3.
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I need someone to explain this answer
Answer:i just simple formulas just remember in bio emzymes live through cells and make up the cell there are millions of different enzymes
Explanation:
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These pea plants have been in the sunlight since early morning.
What can the pea plants do because they are in sunlight? What does this mean for the number of energy storage molecules in the pea plants?
The pea plants can…
Responses
With the help of photosynthesis, the pea plants can take in carbon from the air. The carbon is used to make energy storage molecules.
What do you mean by photosynthesis?Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.
The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas.
The main purpose of photosynthesis is to convert radiant energy from the sun into chemical energy that can be used for food. Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar.
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proteus mirabilis produces the enzyme urease which converts urea into ammonia. explain why patients with UTI caused by proteus mirabilis would have a higher-than-normal urine ph
The enzyme urease, produced by Proteus mirabilis, catalyzes the conversion of urea into ammonia. Ammonia is a base and therefore increases the pH of urine.
Urine pH normally ranges from 4.5 to 8.0, with a healthy urine pH usually ranging between 6.0 and 7.5. When present in the urinary tract, Proteus mirabilis increases the pH of urine to above 7.5 due to the production of urease. This elevated pH environment is more favorable for the growth and survival of the bacteria, allowing it to colonize and cause a urinary tract infection (UTI). As a result, patients with UTIs caused by Proteus mirabilis are likely to have a higher-than-normal urine pH.
Additionally, due to the production of urease, the urine of patients with Proteus mirabilis-caused UTI may show an alkaline reaction on a reagent strip.
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__________ are lethal and non-lethal tools and systems available to the joint force that produce effects within the Area of Operation (AO)
Fires are lethal and non-lethal tools and systems available to the joint force that produce effects within the Area of Operation (AO).
The use of weapon systems to produce a specific lethal or nonlethal effect on a target is referred to as "firing" in Army doctrine. In order to produce precise lethal and non-lethal effects, army fires systems are entrusted with delivering fires in support of offensive and defensive operations. The flames warfighting function must complete three crucial tasks in order to do this. Deliver one fires 3 Conduct targeting and 2 Include all Army, Joint, and Multinational Fires. 3 In addition, fires help operational forces seize, hold onto, and use the initiative while boosting freedom of action and the ability of ground forces to move and maneuver.
Mobile defense, area defense, and retrograde are the three categories of defensive activities. Both the tactical and operational spheres of combat are affected by all. By allowing the opponent to approach into a position where he may be attacked from behind, mobile defenses aim to defeat invading forces.
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What is a deletion mutation?
In deletion DNA sequence changed by removing at least one nucleotide in a gene.
Deletion mutation generally takes place when part of a DNA molecule is not copied during DNA replication. Thus the uncopied part remains as small as a single nucleotide or as an entire chromosome.
In general ,Deletion mutations can be responsible for causing large number of genetic diseases, that includes disease like cystic fibrosis and the cat cry syndrome, that makes child cry with the cat sound or cat meowing . Hence, deletion mutation can occurs when a piece of DNA is removed from the sequence.
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Based on the data in the graph, altering human activity in which of the following areas will most benefit plant species
Based on the data in the graph, altering human activity in introduction of invasive species areas will most benefit plant species.
An introduced, nonnative organism (disease, parasite, plant, or animal) that starts to spread or widen its range away from the location of its initial introduction and has the potential to affect the environment, the economy, or human health is referred to as an invasive species.
Invasive species in the United States include Burmese pythons (Python bivittatus). Southeast Asia is the home of this enormous constrictor snake, which may reach lengths of more than 23 feet. However, it can currently be found in the Florida Everglades.
Invading animal habitats and resources all over the world, humans have basically turned into an invasive species. To make up for the ever-increasing population, people are moving into new areas and changing natural land.
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In three to five sentences, describe the advantages and disadvantages using maps in modeling mitosis.
In biology, models can be viewed as representations, or perhaps events, of the structure and function of biomolecules. Cells have to do several things. First, cells must either replicate themselves or expand. In our human body, cells do both. It replicates when it breaks the skin and expands for the winter. However, some cells do not divide. But the cell also needs to decide whether to make identical copies or four half-copies. Half copies have sexual reproduction. And that's the choice between mitosis and meiosis.
The advantages and disadvantages of using these maps when modeling mitosis are:
They represented intermediate phases consisting of G1, S and G2 phases.
They also listed the stages involved in mitosis. this is also good
Other images also show mitosis, but lack potentially confusing titles or captions. The model should be able to represent the different activities that occur during mitosis. That is, the second model should contain markers that indicate the mitotic process.
The first models had to include pictorial representations for better understanding.
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Researchers radio-tagged gray whales to understand the timing of their migration and details of their journey. What types of data were researchers able to collect about the gray whale migrations
Types of data were researchers able to collect about the gray whale migrations:
Migration begins when Arctic ice begins to form over the foraging grounds.Gray whales migrate to California's Baja Lagoon in December and January.On the way south, the female travels before the male.The northward migration begins after the plankton bloom and the peak of summer in the highlands.Most grays migrate to forage in the Arctic during the summer. Meanwhile, the winter migration originates in the waters off Baja California, Mexico where they feed the newborn calves. The annual round trip is taken by more than 10,000 million.
The gray whale (Eschrichtius robustus) frequently migrates in large flocks along the west coast of North America. With a width of between 13 – 16 meters, these pauses often live in calm and warm waters as a haven from predators.
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