Practice Questions

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

Humans and bats evolved by natural selection, and whales evolved by Lamarckian mechanisms.
Forelimb evolution was adaptive in people and bats, but not in whales.
Natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy.
Genes mutate faster in whales than in humans or bats.

More Questions

TLS Online TPP Program

#Question id: 11055

#Section 2: Evolution

Poison arrow frogs have brightly coloured skin patterns of blue, orange, yellow and red. This skin adornment is an example of what kind of defense against predation?

TLS Online TPP Program

#Question id: 10696

#Section 1: Ecology

In a new area two species A and B was discovered and taking energy from another species X and Y respectively. Following some is life history trait of species.

I- A species is often larger than X

II- Each A species taking energy from many X

III- One Y usually supports populations of B species

IV- Fatality of Y is Mild to severe

Which of the following is correct observation of above species?

TLS Online TPP Program

#Question id: 9233

#Section 5: Applied Ecology & Evolution

What is the biggest problem with selecting a site for a reserve?

TLS Online TPP Program

#Question id: 8853

#Section 2: Evolution