What is an advantage of sexual reproduction over asexual reproduction?
a)genetic variability during an ecological disaster
b)genetic variability when the environment is stable
c)faster reproduction
d)requirement of less energy
e)simpler form of reproduction
a)genetic variability during an ecological disaster
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The sex of most mammals, birds, and insects is determined by:
a. the temperature. b. the external environment. c. sex chromosomes. d. chance. e. the internal envronment.
What structure is produced during meiosis I in the male?
A. secondary spermatocyte B. spermatogonium C. primary oocyte D. immature sperm E. late spermatid
Closed reduction
What will be an ideal response?
You are generally not aware of the texture of the cloth of your shirt as it rests on your shoulders, unless someone or something happens to make you think of it. What part of the brain is responsible for filtering out such stimuli?
A) reticular activating center B) cerebellum C) primary motor area D) postcentral gyrus