+ which of the following is false regarding background extinction events? a. a h

Question

+which of the following is false regarding background extinction events?

a. a human impact is the exclusive cause of background extinction events.

b. Predation and competition may contribute to background extinction events.

c. Climate change may contribute to background extinction events.

d. background extinction events are often a gradual process.

+Which of the following was likely not an advantage in the evolutionary transition from RNA to DNA material?

a. provided potential for more error-free replication.

b. enabled double-stranded material that has the potential to be much longer in length.

c. provided opportunity for more diversity with respect to more functional genes.

d. provided less functional stability to generate genetic variation

+ It could be argued that a virus can be considered as "unit of life" or "biological entity" because of the role that natural selection plays. what necessary characteristics do virus population possess that provide natrual selection to operate on them? check all apply

a.Genetic variation

b. heritable variation

c. pathogenicity

d. differential reproductive success

Explanation / Answer

1. The correct option is a. Background extinction events occurs before human became the reason for extinction.

2. The correct answer is d. DNA is more stable than RNA.

3. All the statements are correct except pathogenecity

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