Physics, 02.08.2019 17:50 andrejr0330jr

Which are characteristics of natural selection? check all that apply. it affects populations. it affects only individuals. it occurs when there is genetic variation. it occurs when organisms are genetically identical. it selects organisms with certain traits to survive. it selects organisms at random to survive.

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Answer from: bree6754

It affects populations.
It occurs when there is a genetic variation.
It selects organisms with certain traits to survive.

Answer from: jewlbug4358

1. It affects populations.

2. It occurs when there is genetic variation.

3.It selects organisms with certain traits to survive.

Natural selection is a natural phenomena, in which differential survival and reproduction occurs, which means that some organisms have phenotypic traits which favors their survival and reproduction in the changing environment over others.

1. The phenomena affects the population as the population with beneficial traits have better chances of survival over others.

2. Some genetic variations are beneficial which makes the organism different from others with respect to survival in the changing environment.

3. It selects the organisms with certain traits to survive this can be explained by an example of two beetle populations of red and green color. The green color beetles resembling the color of grass, remains undetected by the crow population, survive and grow in number, whereas the red beetle detected and eaten by the crow population.

Answer from: Quest

this a false

explanation:

Answer from: Quest

Distance covered, s = 8ft - 4ft = 4 ftinitial velocity, u = 34 ft/sthe acrobat is moving upwards and therefore, a = -g = -9.81 m/s^2 = 32.19 ft/s^2applying equation of motion; s = ut -1/2gt^2then,4 = 34t -1/2*32.19t^24 = 34t - 16.095t^2rearranging; -16.095t^2 + 34t - 4 = 0solving the quadratic equation; t = {-34 +/- sqrt [34^2 - 4(-16.)]}/2(-16.095) = 1.06 +/- 0.93 = 0.13 or 1.99the acrobat will take 0.13 seconds to be at 8 ft above the ground. additionally, once at the maximum height, the acrobat will move down and be at the same spot (that is height) after 1.99 seconds moving down.

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Which are characteristics of natural selection? check all that apply. it affects populations. it af...