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Rom4ik [11]
3 years ago
12

Provide a summary of biologist Stephen Stearns’ findings in how Natural Selection may be working today in humans.

Biology
1 answer:
polet [3.4K]3 years ago
4 0

Answer:

Stephen Stearns states that natural selection doesn't mean the survival of the fittest organisms, but rather this mechanism is illustrated by the selective reproduction of the fittest. Natural selection can be classified into distinct types, including directional, disruptive and stabilizing selection, which are in turn based on sexual selection. These types of selection are driven by different outcomes that have different dynamics.

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By definition, tissues are absent from unicellular organisms. Even among the simplest multicellular species, such as sponges, tissues are lacking or are poorly differentiated. But multicellular animals and plants that are more advanced have specialized tissues that can organize and regulate an organism’s response to its environment.

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How do alleles cooperate to create an offspring’s phenotype?<br><br><br>PLS HURRY
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4 years ago
If the bird population were to be wiped out due to disease, how would this affect the evolution of beetle coloration?
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Answer:

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Explanation:

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3 years ago
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HELP!! The figure below shows ocean currents. Where will climate change slow the currents the most, causing colder temperatures,
PolarNik [594]

Answer:

Along the Kuroshio Current, because it is carrying water north towards melting ice caps

Explanation:

The ocean currents have the tendency to be faster when they are warmer, and to be slower when they are colder. The reason for this is that the warmer water is less dense, thus it can move more quickly, while the colder water is denser, thus heavier, so it moves slower. The Kuroshio Current moves from the lower latitudes toward the higher latitudes. As it does, this ocean current is becoming colder and colder as it gets closer to the higher latitudes, so it is becoming denser, heavier, and because of it slower. Another thing that will contribute to this current's slowing down are the melting ice caps because of the climate change, as they will make the water even colder, and the Kuroshio Current will come across this cold water, so it will decrease its speed significantly.

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