A model of cell division is shown here. A student evaluates the model and makes the claim that the cell division
increases genetic variation in the daughter cells. Which evidence from the model supports the student's claim?
A)
Chromosomes pair in step 2.
Chromatids separate in step 5.
Chromosomes are replicated in step 1.
Chromosomes exchange genetic material in step 3.

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?