Pyramids often are used to show the relative amount of energy that each organism in the next higher level can obtain from the lower-level organism. Which organisms in this food web would make up the lowest level of the pyramid?
A) killer whale
B) small animals
C) leopard seal, elephant seal, crabeater seal
D) algae
Ans: D) algae
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An alteration in the timing of a developmental event caused by a genetic mutation is called ________________.
Fill in the blank(s) with the appropriate word(s).
Problems with kudzu include the fact that it ________
a. has no competing plant species that can reduce its numbers b. now blankets streambanks, trees, houses, and anything else it can climb c. has no native herbivores or pathogens in the United States d. all of the choices
Bioinformatics can be used to scan for short sequences that specify known mRNAs, called _____
A) expressed sequence tags B) multigene families C) proteomes D) short tandem repeats
True or False: All human microbiomes are beneficial to health.
Answer the following statement true (T) or false (F)