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TLS Online TPP Program

#Question id: 4658

Members of two different species possess a similar-looking structure that they use in a similar fashion to perform the same function. Which information would best help distinguish between an explanation based on homology versus one based on convergent evolution?

#Section 2: Evolution

  1. The two species live at great distance from each other.

  2. The two species share many proteins in common, and the nucleotide sequences that code for these proteins are almost identical.

  3. The sizes of the structures in adult members of both species are similar in size.

  4. Both species are well adapted to their particular environments.

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TLS Online TPP Program

#Question id: 12155

#Section 1: Ecology

Under which of the following conditions do the mathematical models for competition tell us that coexistence of two competing species is most likely? 
TLS Online TPP Program

#Question id: 3384

#Section 2: Evolution

In a sample from an African population, the frequency of blood group allele IA, IB and IO were 0.30, 0.20 and 0.50 respectively. What is expected number of homozygous and heterozygous respectively when population size 1200?
TLS Online TPP Program

#Question id: 10594

#Section 1: Ecology

Which of the following is not characteristic of ruderal species?
TLS Online TPP Program

#Question id: 11058

#Section 1: Ecology

The pufferfish, a common marine fish, has extensive spines that extend outward when it swallows water, becoming several times its normal size. This is an example of what kind of defense against predation?
TLS Online TPP Program

#Question id: 11052

#Section 2: Evolution

An example of territoriality is