If<span> you </span>water<span> a </span>plant<span> with </span>salt water<span>, it will wilt, and will eventually die. This is due to the fact that the </span>salt water<span> is a hypertonic solution when compared to the </span>plant<span> cells, and </span>water<span> inside the </span>plant<span> cells will diffuse by osmosis out of the cells in order to reduce the concentration of the </span>salt<span> solution.</span>
you see katie helped sandra with homework, which helped sandra not fail. Because katie did not let sandra fail, sandra can graudate and get a job. She can also thank katie for not letting sandra fail and go homeless.
sandra helped katie rollerblade. which has no significant impact. Who cares about rollerblading.
your answer is C
The answer is A
he is known as the father of natural selection :D