Some species of Anopheles mosquito live in brackish water, some in running fresh water, and others in stagnant water. What type of reproductive barrier is most obviously separating these different species?
A) habitat isolation
B) temporal isolation
C) behavioral isolation
D) gametic isolation
E) postzygotic isolation
Answer: A) habitat isolation
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Cells that have a crawling movement include (select all correct choices):
A. amoebas foraging for food. B. white blood cells in pursuit of invading pathogens. C. migrating embryonic cells. D. nerve cells transporting neurotransmitters. E. contracting muscle cells.
True or false: Claudia had a 50-50 chance of inheriting the mutation on the BRCA1 gene because half of her DNA was inherited from her father, who carries the mutation
A. true B. false
The phenotype expressed by a single genotype can be affected by environmental conditions
Indicate whether the statement is true or false
Using fertility awareness as a means of birth control requires a detailed understanding of the female reproductive cycle
Given what you know about the cycle, when exactly should a woman avoid sex to prevent pregnancy if she is relying on fertility awareness? Make sure to explain your answer. What are the challenges to this method of birth control?