TLS Online TPP Program

#Question id: 8852


The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the corresponding bones in whales have very different shapes and proportions. However, genetic data suggest that all three kinds of organisms diverged from a common ancestor at about the same time. Which of the following is the most likely explanation for these data?

#Section 2: Evolution
  1. Humans and bats evolved by natural selection, and whales evolved by Lamarckian mechanisms.
  2. Forelimb evolution was adaptive in people and bats, but not in whales.
  3. Natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy.
  4. Genes mutate faster in whales than in humans or bats.
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TLS Online TPP Program

#Question id: 11411

#Section 5: Applied Ecology & Evolution

Vulnerability to extinction can be linked to species following characteristics. Which of the following statement are correct?

 A. Rare species are more prone to extinction than common ones.

 B. Species that are capable of migrating between fragments of habitat, such as between mainland areas and islands, may be more resistant to extinction

 C. Organisms that are specialists are more likely to go extinct

 D. Species with naturally long life spans may be more likely to become extinct

TLS Online TPP Program

#Question id: 11412

#Section 5: Applied Ecology & Evolution

following is criteria to qualify Hot spot.

a) r-selected species

b) High numbers of endemic species

c) Many different types of habitats

d) k- selected species

TLS Online TPP Program

#Question id: 11413

#Section 5: Applied Ecology & Evolution

Which of the following is NOT an attribute of a species that makes it vulnerable to extinction?

TLS Online TPP Program

#Question id: 11414

#Section 5: Applied Ecology & Evolution

Which of the following combination of species feature that affecting a species’ sensitivity to extinction?

TLS Online TPP Program

#Question id: 11415

#Section 5: Applied Ecology & Evolution

Below is a list of various bird groups, with their typical age at maturity (in years). Which of these would you expect to have the greatest annual survival?

TLS Online TPP Program

#Question id: 12564

#Section 5: Applied Ecology & Evolution

A prime factor promoting the adaptive radiation of Darwin's finches on the Galapagos Islands was the