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TLS Online TPP Program

#Question id: 9217

Which of the following conditions is the most likely indicator of a population in an extinction vortex?

#Section 2: Evolution
  1. The species in question is found only in small, stable pockets of its former range.
  2. The effective population size of the species falls below 1,000.
  3. Genetic measurements indicate a loss of genetic variation over time.
  4. The population is permanently small.
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TLS Online TPP Program

#Question id: 10857

#Section 1: Ecology

Cowbirds never make nests, never incubate their eggs, and never care for their young. Instead they lay their eggs in the nests of host species, which either reject the egg or care for it and the young that hatches as their own. The cowbird is an example of a(n)
TLS Online TPP Program

#Question id: 3377

#Section 2: Evolution

To call a behavior altruistic, an evolutionary biologist will have to demonstrate that

A) These behavior is decrease the individual fitness of the donor and increases the individual fitness of the recipient

B) These behavior is increases the individual fitness of both the donor and the recipient

C) Overall increase the inclusive fitness of the population

D) These behavior depend on genetic relation

Which of the following above statement is correct?
TLS Online TPP Program

#Question id: 12690

#General Aptitude

From four corners of a square sheet of side 4 cm, four pieces,each in the shape of arc of a circle with radius 2 cm, are cut out.The area of the remaining portion is :
TLS Online TPP Program

#Question id: 12263

#Section 1: Ecology

You have discovered an unknown insect that has cryptic coloration. What do you hypothesize about this animal? 
TLS Online TPP Program

#Question id: 11511

#Section 2: Evolution

A metapopulation is