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TLS Online TPP Program

#Question id: 10619

Which of the following is incorrect?

#Section 2: Evolution
  1. age-specific rates of survival and fecundity remain unchanged; the population eventually assumes a stable age distribution
  2. Type III survivorship curve is the result of a high initial survival rate, which then falls off abruptly with age as the age-specific mortality rate increases
  3. The natural enemies hypothesis suggests that natural enemies may reduce densities of the strongest prey competitors
  4. There is indirect proportional of relationship between average plant weight and density in populations, referred to as a self-thinning curve
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TLS Online TPP Program

#Question id: 4706

#Section 2: Evolution

Which of the following statements best explains why modification or change in an organ or tissue during the lifetime of an individual is not inherited?
TLS Online TPP Program

#Question id: 4707

#Section 2: Evolution

For which one of the following observations were both Lamarck's hypothesis and Darwin's hypothesis in complete agreement?
TLS Online TPP Program

#Question id: 4708

#Section 2: Evolution

The following questions refer to the figure below, which shows an outcrop of sedimentary rock whose strata are labeled A-D. If x indicates the fossils of two closely related species, neither of which is extinct, then their remains may be found in how many of these strata?
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: 4710

#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.

 Which pair of scientists below would probably have agreed with the process that is depicted by this tree?
TLS Online TPP Program

#Question id: 4711

#Section 2: Evolution

Starting from the wild mustard Brassica oleracea, breeders have created the strains known as Brussels sprouts, broccoli, kale, and cabbage. Therefore, which of the following statements is correct?