Along an ocean, the rocky shore zone that has the greatest diversity of life is the ____
a. upper littoral
b. midlittoral
c. lower littoral
d. intertidal
e. neritic
ANSWER: c
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Which morphological feature in lizards, mammals, and birds provides evidence of their descent from a shared
ancestor?
a. ribcages positioned right behind heads in the embryonic stage b. absence of limb buds in embryonic development c. presence of limb buds in embryonic development d. differences in limb structures in adults e. vestigial hindlimbs near the base of the tail in adults
Which of the following is not an activated monomer?
A) adenosine triphosphate B) glucose-6-phosphate C) aminoacyl tRNA D) amino acid E) uracil triphosphate
Name the bases in DNA and their pairing specificities
What will be an ideal response?
Birds are different from reptiles in all of the following features except
A. bipedalism. B. the presence of feathers. C. endothermy. D. the presence of a flight skeleton. E. their lack of teeth.