Which of the following is the most important role of meiosis in sexual reproduction?
A. It prevents the chromosome number from doubling in each generation.
B. It reduces the size of the gametes.
C. It produces at least one gamete that is mobile.
D. It changes the genetic composition of each chromosome.
E. It ensures that each daughter cell doubles the number of chromosomes.
Answer: A
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During ventricular systole, the
A) atria are contracting. B) blood is entering the ventricles. C) AV valves are closed. D) pressure in the ventricles remains constant. E) pressure in the aorta remains constant.
What type of homeostatic feedback reflex is the withdrawal reflex?
What will be an ideal response?
The proper pronunciation of the prefix "meta" is:
A) MEHT-ah B) MEET-uh C) MUHT-uh D) may-ET-uh
Bone tissue consists of extracellular bone_______ and bone cells.
Fill in the blank(s) with the appropriate word (s).