Focus on the evolution of the horn size in the Bighorn sheep population from 1950 to present. Explain how selection was a factor in the evolution of horn size since 1950. Question 10 options:

The hunters chose to harvest the sheep with the larger horns.
Only smaller horned sheep survived and reproduced, so, over time the population had smaller horn size.
The female sheep chose the males with the largest horns, so only sheep with large horns reproduced. As a result, sheep currently have larger horns than 70 years ago.
The mutation for smaller horns happened so the sheep would not be harvested by hunters, and now that mutation spread through the population.
Selection was not a factor in the evolution of horn size since 1950.

Cause: human

Solution: evolution

The hunters chose to harvest the sheep with the larger horns. Only smaller horned sheep survived and reproduced, so, over time the population had smaller horn size.

Explanation:

The trophy hunting (the bigger the better) on bighorn sheep has caused artificial evolution. The human selection (and killing) of sheep with large horns has led to the survival of sheep with smaller horns. It is a form of artificial evolution because in natural evolution bigger horns means to be better armed.

theodore roosevelt challenged william to a duel, whoever won, got their policy sent to congress. it ended up in a stalemate, and both men were injured and sent to the hospital.

the decreasing neutrality of the u. s. in world war i

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