________ are hormones that act locally, affecting neighboring cells.
A. Prostaglandins
B. Oxytocin
C. Insulin
D. Pheromones
E. Oxytocin and pheromones are both correct.
Answer: A
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Which of the following locations is the main reservoir for nitrogen in the nitrogen cycle?
A) atmosphere B) sedimentary bedrock C) fossilized plant and animal remains (coal, oil, and natural gas) D) plant and animal biomass E) soil
The attine ant is entirely dependent on multiple microbial species for its source of food. What microbial species are involved and what is their role in this multi-partner symbiosis?
What will be an ideal response?
What are the most abundant zooplankton?
a. Coccolithophores b. Copepods c. Dinoflagellates d. Foraminiferans
A clade is a __________ group that consists of an ancestor in which a derived character evolved, together with all of its descendant.
Fill in the blank(s) with the appropriate word(s).