The condition known as microbial antagonism may be defined as
A. microorganisms that remain with a person throughout life.
B. a relationship between two organisms where one member harms the other.
C. a relationship between two organisms where only one member benefits.
D. an unsuccessful microbial invasion due to the presence of pre-existing microbes.
E. a relationship between two organisms where both members benefit.
Answer: D
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Four of the five adaptations below allowed animals to live on land. Select the exception
a. eggs that can develop out of water b. waterproof skin c. lungs d. ectothermy e. internal fertilization
Tortoises colonizing the different Galàpagos islands and evolving into different species is an example of speciation.
A. postzygotic B. sympatric C. prezygotic D. allopatric E. parapatric
A common form of chemotherapy used to kill cancer cells is to administer drugs that disrupt cell division. Why might this also result in anemia, hair loss, and sores in the stomach and on the skin?
What will be an ideal response?
ATP drives work in cells by _________.
A. diffusing from areas of high concentration to low concentration B. transferring adenosine to other cell molecules C. generating heat D. transferring its phosphate group to other cell molecules