Which of the following is FALSE regarding
morphogens?
a. They are long-range signals in pattern
formation.
b. They are encoded by master genes.
c. They affect gene expression.
d. Their concentration increases with distance
from source.
e. All of these are true
C
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The facial nerve controls facial expression muscles and conveys taste from the tongue, which are _________ and _________ parts of the nervous system
A. somatic; voluntary B. somatic; involuntary C. autonomic; voluntary D. autonomic; involuntary
Herons and egrets are members of the:
a. gulls. b. tubenoses. c. shorebirds. d. pelicans. e. duck family.
What percentage of the species that have ever existed on earth are probably now extinct?
a. less than 10% b. about 99.9% c. about half d. 25% e. 75%
________ is a protistan parasite that causes malaria in humans
Fill in the blank(s) with correct word