Answers
Color-blindness is an sex-linked condition in which the recessive allele located in the X chromosome codes for the affection. 1) sex-linked trait. 2) The allele is in the X sex chromosome. 3) II2, II4, III1, III2, III5 are color-blinded boys.
What is color-blindness?
Color-blindness is a disfunction characterized by an alteration in color perception.
Color-blindness is an X-linked condition. As the gene that codes for the affection is located in the X chromosome,
Homozygous dominant women have normal vision (X⁺X⁺).Heterozygous women are carrier (X⁺X⁻). Homozygous recessive women are color-blinded (X⁻X⁻).Men, instead, are or are not color-blinded (X⁺Y or X⁻Y).
To analyze this pedigree, remember that
women are represented with circles and men with squares.affected individuals are represented with solid black figures, and healthy individuals with empty figures.1)
Color-blindness is a sex-linked trait. We can assume this because only boys in this family are the affected ones, which suggests they received an X⁻ allele from their mothers.
2)
The allele for color-blindness is located in the X sex chromosome. Again, we can assume this because only boys are color-blinded, but not all boys. If the allele was located in the Y chromosome, then all boys would be affected. This is not the case for individual III8.
3)
II2, II4, III1, III2, III5 are all boys affected by color-blindness.
I1 and I2 have normal vision, but they had two affected boys (II2 and II4) and two healthy girls (II3 and II5). This suggests that I1 is heterozygous. So, II2 and II4 inherited the condition from their mother.II1 does not express the condition, and II2 is color-blinded. They had two affected boys (III1 and III2) and a girl with normal vision. Probably the girl received the dominant allele from the mother and the recessive allele from the father. Boys could only receive the recessive allele from their morther. III1 and III2 inherited the condition from their mother.II5 and II6 are both normal individuals. But they had an affected son. The mother (II5) must be heterozygous for the trait, and transmitted a dominant allele to III4, III6, III7, and III8. Only the individual III5 received the recessive allele from his mother.Family genotypes
I1 ⇒ X⁺X⁻I2 ⇒ X⁺YII1 ⇒ X⁺X⁻II2 ⇒ X⁻YIII ⇒ X⁺X⁺ or X⁺X⁻III4 ⇒ X⁻YIII5 ⇒ X⁺X⁻III6 ⇒ X⁺YIII1 ⇒ X⁻YIII2 ⇒ X⁻YIII3 ⇒ X⁺X⁻III4 ⇒ X⁺X⁺ or X⁺X⁻III5 ⇒X⁻YIII6 ⇒ X⁺X⁺ or X⁺X⁻III7 ⇒ X⁺X⁺ or X⁺X⁻III8 ⇒ X⁺YYou can learn more about color-blindness at
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Related Questions
correctly describe a reproductive approach
Answers
Answer:
In asexual reproduction, a single individual is the sole parent and passes copies of its genes to its offspring without the fusion of gametes.
1. Which tools would a scientist use to determine the topography of the ocean floor? Select all that apply.
satellite
SONAR
trawling net
submersible
Answers
Answer:
sonar
Explanation:
sound waves travel farther than radar and light waves
A goldfish can grow in proportion to the size of its tank. If you keep a goldfish in a small tank, it will remain relatively small over the duration of its life, but
moving the goldfish to larger bowl sizes can result in a larger sized goldfish. This is an example of a (?)
growth factor.
A. genetic
B. Environmental
Answers
Answer:
The given scenario is an example of environmental growth factor because the size and growth rate of the goldfish are determined by the external environment, specifically the size of the tank it is kept in. While genetics can play a role in determining the overall size and growth rate of the goldfish, in this case, the size of the tank has a much greater impact on the goldfish's growth.
According to the picture, what organisms do wolves eat? Select all that
apply
foxes
prairie dogs
bison
prairie dogs
prairie grasses
foxes
wolves
prairie grasses
bison
Answers
Answer:
Explanation:
for the ansAnswer:
Wolves like to eat elf, deer, rabbits, and mice.
i'm srry if not correct and also yr thing is repeating itself for the Answer choices
Explanation:
Answer:
prairie dogs
bisons
foxes
Explanation:
Hope this helps! =D
Which step happens first in secondary succession?
Responses
Grasses, flowers, and mosses colonize the soil.
Bushes and shrubs return and create a shaded environment.
Bare rock is broken down by roots and lichen to form soil.
Seedlings grow into saplings and then taller trees.
Answers
Answer: Grasses, flowers, and mosses colonize the soil.
Explanation:
I took the test and got 5/5
Which of the following is not a primary understanding of the theory of evolution? Individuals evolve, not populations. New species can develop over thousands of generations. Existing species can gradually change in a changing environment. A new trait must be able to be passed on to the next generation.
Answers
Option Individuals evolve, not populations is not a primary understanding of the theory of evolution (option a).
What is the theory of evolution using natural selection?The theory of evolution using natural selection refers to the passage of adaptive features across generations due to the differential survival and reproduction of the most adaptive organisms, which occur at the population level.
Therefore, with this data, we can see that the theory of evolution by means of natural selection is based o the evolution of populations instead of single organisms.
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Please help I need to graduate lol
Answers
The amino acid that corresponds to the sequence, adenine-cytosine-uracil is C. Threonine.
Which amino acid corresponds to the sequence?The amino acid that corresponds to this linkage of three bases is threonine. The sequence of nucleotides in mRNA determines the sequence of amino acids in a protein.
In the genetic code, three nucleotides code for one amino acid. The codon corresponding to adenine-cytosine-uracil (ACU) is the codon for the amino acid threonine. These amino acids form linkages that form the genetic makeup of a person. If there is a mistake in the sequence, this could result in genetic issues.
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____1. Breaking a reactant into small pieces.
____2. Increasing the temperature.
____3. Putting foods in the fridge.
____4. Diluting solutions.
____5. Adding heat.
Answers
Explanation:
Increase 1.Breaking a reactant into small pieces.
Increase 2.Increasing the temperature.
Decrease 3. Putting foods in the fridge.
Decrease 4. Diluting solutions.
Increase 5. Adding heat.
Explanation:
1 increased
2 increased
3 decreased
4 decreased
5 increased
Trace the influence of physical development on an individual by creating a public service announcement (PSA) about prenatal or infant development. A public service announcement is a media message that you might see or hear on television, the radio, or a podcast. Your PSA should be between 30 and 60 words long and provide accurate information in plain language.
Answers
The growth and development of infants from conception to birth os known as prenatal development.
Prenatal development highly influences the physical development of an individual, therefore, adequate care should be taken to ensure proper prenatal development in order to have healthy babies.
What is prenatal development?Prenatal development refers to the growth of the embryo and fetus during the gestation of a viviparous mammal.
Prenatal development begins with fertilization and continues through the fetal stage of development until delivery.
Genetics and the environment inside the womb are the main factors that affect prenatal growth. Maternal and paternal genetics, maternal size, and the placenta's ability to feed the developing embryo are examples of environmental influences.
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DNA can only be used as a code for making
Answers
Answer:
the proteins and molecules essential for our growth, development and health.
Explanation:
As humans, we all are made up of DNA.
If A+ is donated to B+, will the blood coagulate(clump)?
Answers
No, if A+ blood is donated to B+ blood, the blood should not coagulate or clump. Blood type compatibility is determined by the presence or absence of certain antigens on the surface of red blood cells, and A and B are two different types of antigens. A person with blood type A has the A antigen on their red blood cells, while a person with blood type B has the B antigen. A person with blood type AB has both A and B antigens, while a person with blood type O has neither.
In general, blood type compatibility for transfusions follows the rule that a person can receive blood from someone with the same antigen (or no antigen) as themselves. So, a person with B+ blood can receive blood from someone with B+ blood, AB+ blood, O+ blood, or B- blood. They cannot receive blood from someone with A+ blood, as the A antigen would trigger an immune response and cause the blood to clump.
~~~Harsha~~~
What social and environmental factors affect human population size?
Answers
Answer:
Many factors influence the size of a population. Food, water, shelter, predation, and density are all things that can allow a population to grow or cause it to decline.
Hope it helped! :)
How should food workers
keep garbage cans clean
and free of buildup?
a. Sanitize the cans daily
b. Use plastic liners in the cans
c. Keep food waste in outdoor
dumpsters
d. Apply a pesticide to the bottom of
the cans
Answers
Routinely clean trash cans. Put plastic liners inside the cans to stop drips, crumbs, and other filth from accumulating and luring bugs. Never leave full trash bags lying around your business or on the property; always carry them to the nearest skip.
What is the use for plastic liners?Polyethylene liners, often known as poly bin liners, are a type of plastic liner that can be used in a variety of situations. Bulk bags, boxes, and flexible intermediate bulk containers (also known as FIBCs) are all frequently used with them to add an extra lining and layer of protection. Flexible plastic liners made of polyethylene, often known as "poly liners," are created especially to line the interior of flexible intermediate bulk containers (also known as "bulk bags" or "FIBCs"). As a starting point for production, resin for can liners is employed. Low density polyethylene (LDPE), linear low density polyethylene (LLDPE), and high density polyethylene (HDPE) are the three distinct resin types utilised to make can liners.To learn more about plastic liner, refer to:
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Food workers can keep garbage cans clean and free from buildup by sanitizing the cans daily, using plastic liners in the cans, and moving food waste to outdoor dumpsters. Applying pesticide is not recommended.
Explanation:Food workers can keep garbage cans clean and free from buildup by employing a few practical measures.
Sanitizing the cans daily: This could involve washing the cans with hot soapy water and a brush to remove any residual waste and then applying a sanitizer/disinfectant.Using plastic liners in the cans: This helps to prevent direct contact of waste with the can, reducing chances of buildup and making the cans easier to clean.Moving food waste to outdoor dumpsters: Although this could help in reducing odor and pest problems in food service areas, one should also ensure these outdoor dumpsters are correctly handled and cleaned.Applying pesticide to the cans is not generally recommended as it could potentially contaminate food products if not used properly.
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Any know how to number these I keep getting them wrong
Answers
The graphic organizer about DNA given in the question is as follows:
1. Hereditary information
2. Genes
3. Histone
4. Condense
5. Double helix
6. Nucleotides
7. Phosphate
8. Adenine
9. Cytosine
Give a brief account on DNA.DNA, abbreviation for deoxyribonucleic acid, is an organic chemical with a complex molecular structure found in the nucleus of all prokaryotic and eukaryotic cells and many viruses. DNA encodes genetic information to transmit inheritable traits.
Chemical DNA was firstly discovered in 1869, but its role in heredity was not established until 1943. In 1953, James Watson and Francis Crick, with the help of biophysicists Rosalind Franklin and Maurice Wilkins, determined that the structure of DNA is a double-helical polymer. This breakthrough has greatly advanced scientists' understanding of the genetic control of DNA replication and cellular activity.
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Please help i need the answers within 5mins!!!
Answers
In the graham cracker model, the amount of water used is the total volume of water that is dripped onto the cracker during the experiment, which can be measured using a graduated cylinder or other measuring device.
What is the Graham cracker model?In the graham cracker model:
The location on the cracker where water will be dripped is the point where the two lines intersect, which is the center of the cracker.
The height of the eyedropper above the cracker is the distance between the tip of the eyedropper and the surface of the cracker, which can be adjusted by the experimenter.
The rate at which the water will be dripped is the speed at which drops of water fall from the eyedropper, which can also be adjusted by the experimenter.
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The heart is an organ in the circulatory system. Muscle tissue in the heart contracts to pump blood to the body. Connective and epithelial tissues in the heart hold the muscle cells together and in place in the chest. Nervous tissue in the heart coordinates how fast and hard the muscle cells contract.
Based on the information about the heart, which of these best describes the relationship between tissues and organs?
A.
None of the tissues in an organ help the other types of tissue to function.
B.
Organs function best when they are made up of only one type of tissue.
C.
Organs can function because they are made of different types of interacting tissues.
D.
Each type of tissue in an organ can carry out the function of the entire organ.
Answers
which biome is Pennsylvania
Answers
How can individuals reduce carbon dioxide emissions
Answers
Explanation:
easy bruv, use renewable resources
5. How would you classify the following biological molecule?
CH3CH2CH2CH2CH=CHCH2CH2CH2COOH
A. a polypeptide B. carbohydrate
C. nucleic acid
D. nucleotide
E. lipid
Answers
Answer:
B. carbohydrate
Explanation:
Since the only elements that are present are C, H, and O, this macromolecule must be a carbohydrate. Protein polypeptides contain nitrogen, nucleic acids contain phosphorous and nitrogen, and lipids contain phosphorous. So, the only macromolecules with just oxygen, hydrogen, and carbon are carbohydrates.
An easy way to remember:
CHO- carbs
CHON- proteins
CHOP- lipids
CHOPN- nucelotides
Construct a food web diagram of using the following information shown in Table 1
below and include all necessary components of the food web.
Table 1. Food Web for Yellowstone National Park
Animal-------------------------------------- Eats
Grey wolf -------------------------------Elk, Jackrabbit, Ringtail, Beaver
Bobcat---------------------------------- Pine Marten, Whiptail
Ringtail --------------------------------Pika, Tree frog, Squirrel
Raven ---------------------------------Tree frog, Squirrel, Butterfly
Whiptail------------------------------ Bird, Tree frog
Pine Marten------------------------- Squirrel, Tree frog
Pika -----------------------------------Seeds, Flowers, Butterfly
Tree frog-----------------------------Grasshopper, Butterfly, Grasshopper
Squirrel -------------------------------Seeds, Acorns, grass
Butterfly ------------------------------Flower nectar
Beaver --------------------------------Aspen shoots, Aspen trees
Grasshopper------------------------- Grass
Elk ---------------------------------------Aspen shoots, Leaves, Grass
Bird -------------------------------------Flowers
Answers
Grey wolf eats Elk, Jackrabbit, Ringtail, and Beaver. Bobcat eats Pine Marten and Whiptail. Ringtail eats Pika, Tree frog, and Squirrel. Raven eats Tree frog, Squirrel, and Butterfly.
Whiptail eats Bird and Tree frog. Pine Marten eats Squirrel and Tree frog. Pika eats Seeds, Flowers, and Butterfly. Tree frog eats Grasshopper, Butterfly, and Grasshopper. Squirrel eats Seeds, Acorns, and grass. Butterfly eats Flower nectar. Beaver eats Aspen shoots and Aspen trees. Elk eats Aspen shoots, Leaves, and Grass. Bird eats Flowers.
food web diagram:
Here is the food web diagram:
Grey wolf → Elk, Jackrabbit, Ringtail, Beaver
Bobcat → Pine Marten, Whiptail
Ringtail → Pika, Tree frog, Squirrel
Raven → Tree frog, Squirrel, Butterfly
Whiptail → Bird, Tree frog
Pine Marten → Squirrel, Tree frog
Pika → Seeds, Flowers, Butterfly
Tree frog → Grasshopper, Butterfly, Grasshopper
Squirrel → Seeds, Acorns, grass
Butterfly → Flower nectar
Beaver → Aspen shoots, Aspen trees
Grasshopper → Grass
Elk → Aspen shoots, Leaves, Grass
Bird → Flowers
What is Jackrabbit?
A jackrabbit is a North American hare that is known for its long ears and powerful hind legs, which allow it to run at high speeds and jump long distances. It is found in open areas such as grasslands and deserts, and is a common prey item for many predators, including coyotes, eagles, and other large birds of prey. Jackrabbits are known for their ability to survive in harsh environments, and can go for long periods of time without water by extracting moisture from the plants they eat. They are also hunted for sport and for their meat.
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Beginning with plants, how many food chains are present in this web?
Answers
A food web is a complex interconnected network of food chains. The number of food chains present in a food web depends on the number of species and the complexity of their interactions.
What is complex?Complex refers to something that is complicated or intricate in structure or composition. It is used to describe something that is not easily understood or solved due to its many parts or components. Complex systems can include anything from the interactions between multiple people, to the complexity of an ecosystem, to the intricate workings of a computer. Complex systems often require multiple levels of analysis and understanding in order to unravel the components and connections within them.
In a basic plant-based food web, there may only be one food chain present, which begins with plants and ends with a primary consumer. However, in a more complex food web, there can be multiple food chains, each beginning with plants and ending with a different consumer.
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How many half-lives have passed when there are three times as much daughter isotope as parent isotope?
Answers
When the ratio of daughter to parent isotope is three, there have been three half-lives.
What is meant by isotope?The same element's isotopes are different nuclear species. The periodic table shows that they are in the same place and have the same atomic number, but the number of neutrons in their nuclei causes their nucleons to differ. An isotope is one of two or more species of atoms of a chemical element having the same atomic number and location in the periodic table and virtually identical chemical behaviour but with distinct atomic weights and physical characteristics.Carbon-14, tritium (hydrogen-3), chlorine-36, uranium-235, and uranium-238 are a few radioactive isotopes as examples. Numerous isotopes have half-lives that are known to be exceedingly lengthy (in the hundreds of millions of years). The terms "stable nuclides" and "stable isotopes" are frequently used to describe these isotopes.To learn more about isotope, refer to:
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What is difference between of direct and indirect IHC methods ?
Answers
Answer:
Immunohistochemistry (IHC) is a technique used to detect specific proteins (antigens) in cells of a tissue section. There are two main methods for achieving this: direct and indirect.
In the direct method, the primary antibody used to detect the antigen of interest is directly conjugated to a label, such as an enzyme or a fluorochrome. This method is suitable for detecting highly expressed antigens and has the advantage of not requiring an additional incubation step with a secondary reagent.
In contrast, the indirect method uses an unconjugated primary antibody and a labeled secondary antibody that has been raised against the host species of the primary antibody. This method is more suitable for studies of poorly expressed antigens, as it provides signal amplification through the potential for two or more labeled secondary antibodies to bind to each primary antibody. However, the use of a secondary antibody requires additional blocking steps and controls 1.
In summary, the main difference between direct and indirect IHC methods is that direct methods use a directly labeled primary antibody while indirect methods use an unlabeled primary antibody and a labeled secondary antibody to amplify the signal.
Julia made a model of a cell in a clear plastic zipper bag. She used a marble for the nucleus and pinto beans for mitochondria.
Which of the following options would be best for making her model more like a plant cell?
A.
Put the bag inside a clear plastic box.
B.
Take the marble out of the bag.
C.
Put the bag inside a larger clear plastic bag.
D.
Take the pinto beans out of the bag.
Answers
Put the bag inside a clear plastic box.
how can the growth and survival of individual organisms be affected by decreased or increased resource availability?
Answers
Answer:
The growth and survival of individual organisms can be greatly affected by changes in resource availability. If resources become scarce or limited, the growth and survival of organisms can be negatively impacted. On the other hand, if resources become abundant, organisms may experience increased growth and survival.
Here are some ways that decreased or increased resource availability can affect the growth and survival of individual organisms:
Decreased Resource Availability:
Reduced growth: When resources are limited, organisms may grow more slowly or not at all. This can lead to smaller body size and reduced fitness.
Reduced reproduction: Limited resources may also reduce an organism's ability to produce offspring, as it may not have the energy or resources to allocate towards reproduction.
Increased competition: As resources become scarce, organisms may need to compete more intensely for access to those resources. This can lead to increased stress and decreased survival.
Increased predation: When resources are scarce, predators may become more attracted to areas where prey are concentrated, leading to increased predation pressure.
Increased Resource Availability:
Increased growth: When resources are abundant, organisms may grow more quickly and larger, which can increase fitness and survival.
Increased reproduction: Abundant resources can also increase an organism's ability to reproduce, as it may have more energy and resources to allocate towards reproduction.
Reduced competition: With abundant resources, competition for those resources may be reduced, which can decrease stress and increase survival.
Reduced predation: When resources are abundant, prey may be more widely distributed, making it more difficult for predators to find and catch them.
Overall, resource availability is a key factor in determining the growth and survival of individual organisms, and can greatly impact their ability to thrive in their environment.
Explanation:
Compare the density of stomata between the two varieties of olive plant, A and B, shown
in Fig
Answers
The comparison of stomata density between olive plant varieties A and B reveals that plant A has a higher density of stomata on its lower leaf surface compared to plant B.
Stomata are tiny pores on the surface of leaves that allow for gas exchange and water vapor transpiration. The density of stomata can vary among plant species, and within the same species, it can vary based on environmental conditions.
In the given images of stomata on the lower leaf surfaces of olive plants A and B, it is clear that plant A has a higher density of stomata per unit area than plant B. This suggests that plant A has a higher capacity for water uptake compared to plant B. The higher stomata density of plant A may be an adaptation to a drier environment, allowing it to better cope with water stress.
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The complete question is:
Water reaches the leaves from the roots through the xylem. Fig. 4.1 shows images of stomata on the lower surfaces of leaves of two varieties of olive plant, A and B. Both are shown at the same magnification.
Compare the density of stomata between the two varieties of olive plant, A and B, shown in Fig. 4.1.
For this cross,
RrYytt x RryyTT,
what is the
probability that
the offspring will
have at least two
recessive traits?
Answers
Answer:2/8 or 1/4 or 25%
Explanation:When we cross two individuals with the genotypes RrYytt and RryyTT, there are several possible outcomes for the offspring. To determine the probability that the offspring will have at least two recessive traits, we need to first determine the possible genotypes of the offspring.
The Punnett square method can be used to predict the possible genotypes of the offspring. When we fill in the Punnett square for this cross, we get the following results:
| | Rr | Ry |
|---|---|---|
| ry | RrYyrt | Rryyrt |
| yt | RrYyTt | RryyTt |
In this case, there are two possible genotypes that have at least two recessive traits: Rryyrt and RryyTt. So the probability of the offspring having at least two recessive traits is the sum of the probabilities of these two genotypes.
To calculate these probabilities, we need to consider the laws of probability. The probability of an event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.
In this case, there are four possible outcomes for each of the two genotypes that have at least two recessive traits. So the total number of possible outcomes is eight. The number of favorable outcomes is two, since there are two possible genotypes that have at least two recessive traits.
Therefore, the probability of the offspring having at least two recessive traits is 2/8 or 1/4, which is equivalent to 25%.
What is the effect of predation on prey?
Predation will make prey organisms wait longer to reproduce.
Predation makes all of the individuals in the populations being preyed upon less fit.
Predation doesn't have any long term effects on prey organisms
Predation is a strong selective force for prey organisms.
Answers
Recombinant chromatids due to crossing over occurs during.
a. prophase of meiosis I.
b. the interphase preceding meiosis II.
c. the mitotic telophase.
d. fertilization.
e. the formation of somatic cells.
Answers
Prophase an of meiosis I is when recombinant chromatids are formed as a result of crossing over. Homologous chromosomes connect and can exchange genetic material through a process known as crossing over during prophase I of meiosis.
Recombinant chromatids, which combine genetic material from the parent chromosomes, may arise as a result of this. This is a significant source of genetic diversity and adds to the diversity of the progeny obtained through sexual reproduction.
Recombinant chromatids are chromosomes that have undergone a process called crossing over, which occurs during meiosis. Crossing over involves the exchange of genetic material between homologous chromosomes, resulting in the formation of recombinant chromatids that contain a mixture of genetic information from the two parent chromosomes. This process contributes to genetic diversity by creating new combinations of alleles in the offspring.
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Identify the trophic level held by each of the organisms on the food web above. It is possible for an organism to hold two or more levels depending on what they eat.
The Levels are: Producer, Primary Consumer, Secondary Consumer, Tertiary Consumer
The organisms are: Deer , Frog, Grass, Mouse, Eagle, Trees
Answers
The trophic level develops as every link or grade in a food web. At a trophic level, autotrophs, the manufacturers, are the first. Following that are primary and secondary consumers. The people who decompose are at the lowest trophic layer.
How many trophic levels can you find in the food web?All food chains including webs contain more than an assortment of various trophic levels. There are only four trophic levels overall principle. Many consumers consume at many trophic levels. People are the key consumers organic vegetation that includes vegetables.
What exactly is a trophic level?Microbes occupy a particular trophic position in the food web according to the source that provides their nourishment or food. The initial trophic level is made composed of the main producers, who are followed by main consumers (herbivores), main consumers (carnivores who survive on herbivores), and so on.
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