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TLS Online TPP Program

#Question id: 12576

Estimates of current rates of extinction

#Section 5: Applied Ecology & Evolution
  1. Indicate that we  have reached a  state of  stable equilibrium  in  which  speciation and extinction rates are approximately equal.
  2. Suggest that one-half of all animal and plant species may be gone by the year 2100.
  3. Indicate that rates may be greater than the mass extinctions at the close of the Cretaceous period. 
  4. Indicate that only 1% of all of the species that have ever lived on Earth are still alive.
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TLS Online TPP Program

#Question id: 3476

#Section 2: Evolution

The genetic relatedness (r) of an individual to brother is 0.50, according to Hamilton’s Rule, only if the fitness benefit is
TLS Online TPP Program

#Question id: 8930

#Section 2: Evolution

Soon after the coelom begins to form, a researcher injects a dye into the coelom of a deuterostome embryo. Initially, the dye should be able to flow directly into the
TLS Online TPP Program

#Question id: 16785

#Section 3: Mathematics and Quantitative Ecology

Median of 25, 72, 28165,29, 60, 30, 54132, 53, 33, 52, 35,51, 42, 48145, 47, 46, 33 is 
TLS Online TPP Program

#Question id: 4610

#Section 2: Evolution

It has been observed that organisms on islands are different from, but closely related to, similar forms found on the nearest continent. This is taken as evidence that ________.
TLS Online TPP Program

#Question id: 12313

#Section 1: Ecology

Modern behavioural concepts relate the cost of a behavior to its benefit. Under which relationship might a behavior be performed?