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#Question id: 11656


What is the assumption of Clements in colonizing successional  species?

#Section 1: Ecology
  1. possession of space is all-important and that the colonists that get there first determine subsequent community structure, such as facilitation
  2. Early colonists may exclude subsequent colonists such as
  3. Any species can start the succession, but the eventual climax community is reached in a somewhat orderly fashion, such as tolerance
  4. Each colonizing species made the environment a little different, such as facilitation
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#Question id: 3367

#Section 2: Evolution

The largest unit within which gene flow can readily occur is a

TLS Online TPP Program

#Question id: 3431

#Section 2: Evolution

In the territorial behavior of the stickleback fish, the red belly of one male elicits attack from another male by functioning as

TLS Online TPP Program

#Question id: 16204

#Section 2: Evolution

Evolution of different characters at different rates within a lineage called as?

TLS Online TPP Program

#Question id: 3427

#Section 2: Evolution

Natural selection can alter the frequency of distribution allele and heritable trait in different following way

A- Accumulation of those mutation that increase fitness of population in changing environment

B- Check accumulation of mutation that lower the fitness of species in unchanging environment

c- occur when population is subjected to divergent selection

TLS Online TPP Program

#Question id: 3425

#Section 2: Evolution

Many evolutionary forces are operating in population. In study, within population increase genetic variation due to -----A-----while decrease genetic variation due to ------B-----. Between populations increase genetic variation due to -----C-----while decrease genetic variation due to ------D-----.

TLS Online TPP Program

#Question id: 3423

#Section 2: Evolution

Following statement regarding divergent evolution?

A- Spreading of same species to different and isolated environments which blocks the gene flow among the distinct populations

B. vertebrate limb of whale and elephant is one example of divergent evolution

C- Both orthologous genes and paralogous genes can be said to display divergent evolution

D- Sympatric speciation leads to divergence of one species in to two are more descendant species

Which of the following combination of above statement are correct?