The amount of energy that flows through a detrital food web is _________that which flows through a grazing web

a. the same as
b. greater than
c. less than
d. the sum of
e. the difference of


b

Biology & Microbiology

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Which of the following is NOT an active form of an enzyme?

a. trypsin b. amylase c. pepsin d. pepsinogen e. chymotrypsin

Biology & Microbiology

Echinoderms are related to Chordates because the first opening in development becomes the mouth

____________________ Indicate whether the statement is true or false.

Biology & Microbiology

When imbalances occur in the sex ratio of sexual species that have two sexes (that is, other than a 50:50 ratio), the members of the minority sex often receive a greater proportion of care and resources from parents than do the offspring of the

majority sex. This is most clearly an example of _____. A) sexual selection B) balancing selection C) stabilizing selection D) frequency-dependent selection

Biology & Microbiology

Which of the following is not an important anatomical feature for determining if a fossil is a hominin?

A. flat face B. absence of sharp canines C. brain size D. bipedal posture E. absence of a chin

Biology & Microbiology