Question

5.

Which of the following statements is true about the theory of evolution?

		The focus of the theory of evolution is to explain the origins of life.
		According to the theory of evolution, life evolved entirely randomly.
		The focus of the theory of evolution is to explain how life diversified from the first living cells.
		According the theory of evolution, only the strongest and toughest can survive. 6. Which of the following best explains our current understanding of microevolution? Neither microevolution nor macroevolution can be observed within a human lifespan? Microevolution is the gradual change of the genetic makeup (allele frequency) of a population over time. Microevolution and macroevolution occur by very different mechanisms Microevolution is the evolution of small organisms; macroevolution is the evolution of large organisms. 7. The Irish elk is a giant species of deer that went extinct about 5,000 B.C. They are well-known for their extremely large antlers (12 feet wide) in males. The antlers likely played some role in protection against predators, but another possible cause for their large size could be blending genetics sexual selection spontaneous generation inheritance of acquired characteristics 8. Cross River gorilla is listed as critically endangered species. With only 35 of these gorillas in the world, they are at risk of extinction largely due to poaching and loss to diseases such as Ebola. Genetic studies of the remaining gorillas show very little variability, because several alleles were likely lost due to ______. genetic drift gene flow increased rate of spontaneous mutations adaptive radiation

Answer 1

(5)The focus of the theory of evolution is to explain how life diversified from the first living cells.

Evolution is not about the origin of life, but about diversification living beings.

(6)Microevolution is the gradual change of the genetic makeup (allele frequency) of a population over time.

Microevolution is the change in allele frequencies which occurs as a result of different factors such as mutation, selection gene flow and genetic drift over a period of time in a given population

(7)sexual selection

larger extremely large antlers is percieved as increased strength during selection of a mate