Answer:
human health disruption can occur when ecosystem services are no longer able to meet social needs
Natural selection can change in a population in multiple ways.
1) natural selection can lower a population by death (an example would be a plague)
2) A population can adapt to the natural selection (an example would be anti bodies for the plague)
Hope this helps
Acquired mutations occur at some time during a person's life and are present only in certain cells, not in every cell in the body. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division. Hope this helps ;)
For the answer to the question above,
<span>The only taxon in which the biological characteristics are clearly identifiable is the <em><u>"species".</u></em></span>
We should focus on getting people to move their butts. Steven Blair says the sedentary life style of people needs to be eradicated to treat low fitness and excess weight.