Meiosis I results directly in the production of
a. spermatids.
b. spermatogonia.
c. primary spermatocytes.
d. secondary spermatocytes.
e. sperm.
Answer: d
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Which of the following is not an example of a characteristic of life?
A. Energy is needed to build, regulate, and conduct processes of life. B. Organisms are composed of atoms that make up cells. C. Organism have the ability to reproduce, grow, and develop. D. Organisms maintain internal constancy. E. All of the answer choices are correct.
Rhizopus stolonifer , commonly known as bread mold, is a(n):
1.Ascomycete
2.Basidiomycete
3.Chytrid
4.Zygomycete
Which organelles supply energy (ATP) to plant cells?
A.) ribosomes B.) centrosomes C.) mitochondria D.) vacuoles
The amniotic egg first appeared in which group of animals?
A) reptiles B) amphibians C) mammals D) birds