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TLS Online TPP Program

#Question id: 4617

Which of the following is not an observation or inference on which natural selection is based?

#Section 2: Evolution

  1.  There is heritable variation among individuals.

  2. Poorly adapted individuals never produce offspring.

  3. Species produce more offspring than the environment can support.

  4. Only a fraction of an individual's offspring may survive.

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TLS Online TPP Program

#Question id: 10616

#Section 1: Ecology

In a study of tree dispersion in a forest, we divided the forest into 1 sq km grid cells, choose 50 of them at random, and counted the number of trees in each cell. The means to variance ratio of the counts of trees per cell was much less than 1. What does this tell us about the spatial distribution of the trees?
TLS Online TPP Program

#Question id: 12423

#Section 1: Ecology

A population at K is
TLS Online TPP Program

#Question id: 10848

#Section 1: Ecology

Intraspecific competition

A. Is seen only in species of animals

1. Through time, hosts become more resistant to parasitic infections and, if they are to be successful, parasites become less likely to cause the death of their hosts. This is an example of
TLS Online TPP Program

#Question id: 11930

#Section 1: Ecology

When females are equally successful in raising young on monogamous and polygynous male territories, the population is said to have reached the: 
TLS Online TPP Program

#Question id: 5160

#General Aptitude

The last digit of the number 32015 is