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TLS Online TPP Program

#Question id: 12116

Which of the following is not required for a behavioural trait to evolve by natural selection? 

#Section 4: Behavioural Ecology
  1. In each individual, the form of the behaviour is determined entirely by genes.
  2. The behaviour varies among individuals.
  3. An individual's reproductive success depends in part on how the behaviour is performed. 
  4. Some component of the behaviour is genetically inherited.
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TLS Online TPP Program

#Question id: 15716

#Section 2: Evolution

Evolutionary biology extends and amplifies the explanation of biological phenomena. It complements studies of the proximate causes (immediate, mechanical causes) of biological phenomena If we ask what causes a male bird to sing, the proximate causes include the action of testosterone or other hormones
TLS Online TPP Program

#Question id: 4633

#Section 2: Evolution

Natural selection is based on all of the following except
TLS Online TPP Program

#Question id: 4634

#Section 2: Evolution

Which of the following represents an idea that Darwin learned from the writings of Thomas Malthus?
TLS Online TPP Program

#Question id: 4632

#Section 2: Evolution

Which of these conditions should completely prevent the occurrence of natural selection in a population over time?
TLS Online TPP Program

#Question id: 4635

#Section 2: Evolution

Which statement about natural selection is most correct?
TLS Online TPP Program

#Question id: 4637

#Section 2: Evolution

A biologist studied a population of squirrels for 15 years. During that time, the population was never fewer than 30 squirrels and never more than 45. Her data showed that over half of the squirrels born did not survive to reproduce, because of competition for food and predation. In a single generation, 90% of the squirrels that were born lived to reproduce, and the population increased to 80. Which inference(s) about this population might be true?

A) The amount of available food may have increased.

B) The number of predators may have decreased.

C) The squirrels of subsequent generations should show greater levels of genetic variation than previous generations, because squirrels that would not have survived in the past will now survive.

Choose correct combination,