Identify which type of natural selection is described in each case below. results in the evolution of the species: results in new species: favors traits at the two extremes: no increase in diversity: one extreme trait is favored: diversity decreases: diversity increases:

Directional

Disruptive

Disruptive

Directional

Directional

Stabilizing

Disruptive

right answer for e2020

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tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.