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Biology
Biology
College
What type of material is often used to make Impressions of tool marks?A. cement mix B. dental paste C. porcelain clay D. plaster of Paris
Biology
High School
Help me please :( ,Someone
Biology
High School
This incorrect copy is known as a A. mutation. B. protein. C. duplicate. D. codon.
Biology
College
A student drew the following model.Which phase is the best summary of the model
Biology
College
Help fast plz!!!In a population of moths, wing color became darker over time. Which of thefollowing is the best evidence that the change in wing color was an evolutionary change?a) The size of the moth population changed.b) The average length of the moths' dark wings increased.c) The number of eggs that females laid during each breeding season increased.d) The frequencies of the alleles for dark wing color in the moth populationchanged.
Biology
College
Oxaloacetate is a key intermediate in the citric acid cycle, but it is also needed as a precursor for the synthesis of glucose during gluconeogenesis. Oxaloacetate is also fairly chemically unstable and undergoes spontaneous decarboxylation to pyruvate. Although oxaloacetate is not depleted by participation in the citric acid cycle, it can become depleted by other processes, necessitating its replenishment by various synthetic pathways. Use the Metabolic Map to identify enzymes that can replenish oxaloacetate or other citric acid cycle intermediates.
Biology
College
Were there any extinction events that occurred during the Cambrian period?? Help !!!
Biology
College
Which spheres of Earth are directly influenced when human-caused air pollution leads to acid rain that dissolves limestone rocks? atmosphere, cryosphere, geospherecryosphere, hydrosphere, biospheregeosphere, atmosphere, hydrospherebiosphere, atmosphere, cryosphere
Biology
Middle School
In your own words, describe the difference between the movement of particles in liquids and the movement of particles in gases.
Biology
College
The genootype for a pea plant that is hom0zygous recessive for both height and pea color a.TtYyb. ttyyc. TTYYd. ttYY
Biology
High School
please help me with this its due today
Biology
High School
how cutting down trees contribute to global warming??
Biology
High School
What is converted into chemical energy during photosynthesis?a.soilb.nitrogen oxidec.radiant energyd.all of these
Biology
High School
The speed of an object at a particular moment in time is known as the........A. instantaneous speedB. instantaneous velocityC. SpeedD. Velocity
Biology
College
In what form is energy that is NOT used for life processes released fromliving things?A) Light energyB) Sound energyC) Thermal energyD) Chemical energy
Biology
College
Which of the following is an example of olfactory sense?Select one:a. Salim predicted the lunch menu by touching the foodO b. Salim predictthe lunch menu just by the smellof the foodc. Salim predicted the lunch menu by looking at the foodd d. None of these
Biology
College
A calorie is the amount of energy it takes raise the... of 1 mL of water by 1 C.a) temperature b) massc) volume d) density
Biology
College
A microscope has a 4x ocular lens and a 10x objective, what is this microscope'stotal magnification?4x14x40x400x
Biology
High School
What characteristic makes marine mammals different from other marine animals?They all give birth on land.They live only in the ocean and cannot leave the water.They are carnivores that eat mainly fish.They breathe air through lungs.
Biology
High School
which one ?A.B.C.D.
Biology
High School
Which is an abiotic factor in Florida's environment?
Biology
High School
1. Why is it important to replicate DNA?
Biology
High School
Which type of muscle's movements are involuntary? A. Smooth muscle and Cardiac muscle B. Smooth muscle and Skeletal muscle C. Cardiac muscle D. Skeletal muscle
Biology
College
Humans originated in Africa about 7 million years ago: if life on earth started 3.5bya ago and represented 24 hours from then to today, how many minutes of these 24 hours would be devoted to this 24-hour clocka) since the first humans showed up?b) since Humans showed up 300,000 ya?
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