In north America, the average height of adult humans has been increasing steadily for decades. In...

In north America, the average height of adult humans has been increasing steadily for decades. In directional selection occurring?

What data would justify your answer?

Expert Solution

Directional selection happens when an adjustment in the enviroment chooses for an extraordinary type of a characteristic. For this situation, the characteristic would be height and the extraordinary would be the tall end of the stature range.

Increment in height is likely not a consequence of directional selection, but rather one approach to give prove in help of this reality is demonstrate stature of the items essential to human survival has not expanded. On the off chance that trees were getting taller or prey animals were getting to be plainly bigger, than directional selection might be at play. Undoubtedly, the increase in height is because of sexual determination in humans, females likely incline toward taller man. To help this theory, lady could be demonstrated a progression of male photographs and made a request to rate them on allure; if the ladies indicate inclination towards the taller guys in the photographs, this would lend weight to this thought.

queen_honey_blossom answered 2 years ago

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