The chemical group associated with epigenetic changes to our genome is the _________ group. Fill in the blank(s) with the appropriate word(s)
ANS: methyl
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Injection of a single antigen usually results in production of
A. antibody to a single epitope. B. an antibody that recognizes several epitopes. C. additional antigen. D. a number of antibodies each recognizing a different epitope.
Which list is arranged from the smallest to the largest organization level?
a. tissue, organ, organ system b. tissue, organ system, organ c. organ system, organ, tissue d. organ system, tissue, organ e. organ, organ system, tissue
The Humboldt Current, a river of cold water running deep beneath the Pacific Ocean, sweeps eastward toward the South American coast until it hits the coastline, where it is forced upward near the surface
Deep sediments come up along with the cold water. Predict what you would find along that coast. A) tremendous biomass B) very few sea birds C) lots of rain D) limited algae
You have been assigned to address a problem of overpopulation of species X in a nearby county. One of the members of your team suggests introducing species Y, which is a natural predator of species X, but not normally found in the area. After some discussion, you go ahead and introduce species Y. What aspects of the hierarchical organization may be affected within a period of a several years?
A. organism, population, species B. population, species, community C. population, community D. population, species, community, biosphere