In deuterostomes, into what does the blastopore develop ?
a. Mouth
b. Coelom
c. Anus
d. Germ layer
c. Anus
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In the vertebrate eye, what structure controls the amount of light that reaches the retina?
A. fovea B. cornea C. iris D. lens E. sclera
Which of the following are in order from
primary producer to 4th trophic level? a. grass: coyote: bird: grasshopper b. coyote: bird: grasshopper: grass c. bird: grasshopper: grass: coyote d. grass: grasshopper: bird: coyote e. none of these
The products of an endocrine gland:a
only affect their own tissues. b. can have a digestive function. c. always stimulate the target tissue. d. generally have to travel to reach the target tissue. e. are not produced by cells in organs, such as the heart.
Fungi and animals appear to be more closely related to each other than either is to plants __________.
a. because neither of them are photosynthetic= b. based on molecular analyses c. based on similarities in cell structure d. because they moved onto land together e. based on the homologous ultrastructure of their flagella