Four of the following statements about turtles are true. Which statement is false?
a. About 300 species of turtles currently exist.
b. Turtles do not have teeth.
c. Turtle shells are enlarged in marine forms.
d. Turtles must return to land to lay eggs.
e. Most sea turtle species are highly endangered.
ANSWER: c
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Both the endocrine glands and neurons receive
signals from
a. the amygdala. b. the hypothalamus. c. the adrenal cortex. d. the anterior pituitary gland. e. more than one of these.
The cytoskeleton ____
a. extends between the nucleus and the plasma membrane b. is found within the nucleus c. is associated with only certain cell structures d. is found within organelles e. is found in all animal cells but not in cells with cell walls
Coyote populations are lower where wolf populations are increasing because
A) wolves directly compete with coyotes. B) wolves are a primary predator on coyotes. C) wolves can withstand colder temperatures than coyotes. D) wolves facilitate coyote populations by leaving scavenged meat.
In a two-point test cross, 36 of the offspring were recombinant types. The remaining 64 offspring were parental types
How many map units separate the two loci? a. 28 b. 36 c. 64 d. 78 e. 100