What process occurs when chromosomes are in a tetrad of
sister chromatids?
A. The chromosomes exchange portions of their
DNA through crossing over.
B. The chromosomes combine into one long
strand for fertilization.
C. All the genetic information is segregated, so it
does not mix in the chromosomes.

What are some things that limit population growth?

Nucleus has two lobes; contains granules of lysosomal enzymes; functions in attacking parasitic worms and plays complex roles in inflammatory diseases like allergies and asthma. what blood cells are described?

1. -define adaptation2 explain darwin's theories of descent with modification and natural selection in detail3. -explain how each of these provides evidence for evolution: a. -fossil record, including superposition and transitional fossilsb-anatomy, including homologous structuresc-biological molecules, including dna and proteins4. -explain the difference between convergent and divergent evolution.5. -define and give three examples of artificial selection6. -define and give one example of coevolution.7. -explain biodiversity and how it benefits humans.8. -explain a type of population lest affected by environmental change.