The __________ is the outermost extraembryonic membrane of the amniotic egg.
a. chorion
b. allantois
c. amnion
d. yolk sac
e. shell
Answer: a. chorion
Biology & Microbiology
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When pair-rule genes and segment-polarity genes are mutated, larvae display disturbances in segmentation patterns
A. true B. false
Biology & Microbiology
A selectively ________ membrane is one that allows some molecules to pass through but not others.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Identify the eight structures of the male reproductive system and indicate their functions.
What will be an ideal response?
Biology & Microbiology
."A change over time" is the definition of
a. mutation. b. homeostasis. c. physiology. d. evolution. e. respiration.
Biology & Microbiology