These useless leg bones are vestigial structures. It was believed that the only vertebrates existing were water creatures. Over time, they developed hips and legs as they eventually walked out of the water which later evolved to land creatures. Some of these are mammals, and they later moved back to the water. Biologists believe this to have occurred 50 million years ago.
The answer is D)
<span>After age 30, if you have 3 consecutive normal Pap tests, then you may be screened every 2 to 3 years.</span>
DNA themselves discovered DNA
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The molecule now known as DNA was first identified in the 1860s by a Swiss chemist called <span>Johann Friedrich Miescher</span>
Increasing ocean acidity impact the mechanism of natural selection by
leading to increased random mutations and unfavorable traits.
<h3>Effects of Ocean acidity</h3>
Ocean acidity is harmful to organisms present and gives rise to the following:
This could be as a result of excess Carbon dioxide or acidic contents in the
ocean. This negatively impacts organisms and alters the genetic constituent
thereby leading to mutations and passing on of unfavorable traits to
offsprings.
Read more about Ocean acidity here brainly.com/question/999152
Answer:
It increases for most species.
