TLS Online TPP Program

#Question id: 10827


A barnacle grows on a whale, doing it no harm. This is an example of

#Section 1: Ecology
  1.  Vitalism
  2. Mutualism
  3. Parasitism
  4. Commensalism
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TLS Online TPP Program

#Question id: 3316

#Section 2: Evolution

There are two population A (N = 500) and B (N=50). Due to genetic drift, both populations will lose its genetic diversity in a generation. Such losses become magnified over many generations. After 20 generations, what will be lose its original variation?

TLS Online TPP Program

#Question id: 3394

#Section 2: Evolution

All genetic drift arises from sampling error.  There are several different ways in which sampling error can arise as a following

a. Reduced population size      b. Founder effect

c. Genetic bottleneck                d. Differ in sex ratio

Which of the following above way cause sampling error in succeed generation?

TLS Online TPP Program

#Question id: 4709

#Section 2: Evolution

 The horizontal axis of the cladogram depicted below is a timeline that extends from 100,000 years ago to the present; the vertical axis represents nothing in particular. The labeled branch points on the tree (V-Z) represent various common ancestors. Let's say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species, and only the tips of the lineages on this tree represent distinct species.

 In Darwin's tree of life, each fork in the tree represents ________.

TLS Online TPP Program

#Question id: 11251

#Section 4: Behavioural Ecology

The highest grade of sociality in the animal world is called:

TLS Online TPP Program

#Question id: 12674

#Section 5: Applied Ecology & Evolution

You  have  a  friend  who  is  wary  of  environmentalists? claims  that  global  warming  could  lead  to  major  biological change on Earth. Which of the following statements can you truthfully make in response to your friend's suspicions?