The initial floristic composition hypothesis proposes that the process of succession at any site is dependent on which species arrive first
Indicate whether the statement is true or false
TRUE
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A gene pool is
A. the genes that are unique to a species. B. all the genes in a population. C. all the similar genes in a gene family. D. a swimming hole for geneticists. E. a group of species that look alike but are not located in the same area at the same time.
________ allows fish to camouflage themselves to avoid predators or ambush prey
a. Obliterative countershading b. Disruptive coloration c. Aposematic coloration d. Cryptic coloration
How does fever help fight infection as part of the innate defense?
A. Fever inactivates (kills) some viruses. B. Fever speeds up the rate of phagocytosis. C. Fever reduces the iron level in the blood, thereby retarding the growth of some bacteria. D. Fever kills some bacteria. E. All of the answer choices are correct.
Geological evidence reveals that the barrier islands, where the populations of oldfield mice shown in the fig-ure above occur, formed only 6,000 years ago
Presumably, divergence in coat color has occurred since that time (Hoekstra et al. 2006). This is a very short time on the scale of evolutionary time. Explain how these dramatic variations in coat color between popula-tions could have occurred over such a relatively short time span. What will be an ideal response?