Which taxa contain the largest number of known species?
A) coleoptera
B) plants (embryophytes)
C) fungi
D) crustaceans
A
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Which of the following is NOT a function of
some leukocytes? a. engulf and destroy damaged or dead cells b. engulf anything recognized as foreign c. call up specific immune responses d. carry out specific immune responses e. secrete substances that initiate blood clotting
While on a hike, you notice that several burrs have become attached to your socks. You quickly pull them off. Inside the burr are several seeds. Burrs are produced by certain plants and frequently catch on animal fur (or people's clothing)
After thinking about it, you decide that the burr is a type of ________ that is an adaptation for ________. A) leaf...protecting plants from herbivores B) fruit...seed dispersal C) cambium...seed protection D) pollen grain...successful pollination
At present the human population is
A. in the death phase B. growing rapidly C. stable D. in the lag phase
Haldane pointed out that if he received a certain allele, the chance that one of his brothers would receive that allele would be
A. Random B. 50% C. 0% D. 100% E. 10%