Which of the following is not an extraembryonic membrane that develops from the embryos of reptiles, birds, and mammals?
A) chorion
B) yolk sac
C) egg shell
D) amnion
E) allantois
Answer: C) egg shell
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An achondroplastic male dwarf with normal vision marries a color-blind woman of normal height. The man's father was six-feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive.How many of their sons would be color-blind and of normal height?
A) all B) none C) half D) one out of four E) three out of four
The anthropoids include
A. monkeys. B. humans. C. apes. D. All of the choices are correct.
What is the most likely role of the tests in a testate amoeba?
A. Provide motility B. Concentrate nutrients C. Enable adherence to surfaces D. Provide protection
Bdellovibrios are intracellular parasites of (animals/bacteria/plants).
Fill in the blank(s) with the appropriate word(s).