C. Single events or several causes working together to produce extinction in a short period is referred to as mass extinction.
<span>Example:
</span><span>Destruction of forests, mountains, and bodies of water to satisfy human needs result to the imbalance of nature which also give rise to global warming.
</span><span>Animals and plants have lost their habitats. They lost their means to live. They lost their food sources and they suffer and die because of humans irresponsible acts.</span>
Please rephrase the question, it doesn't make sense.
Answer:
From The School of Biomedical Sciences Wiki. Complementary base pairing is the phenomenon where in DNA guanine always hydrogen bonds to cytosine and adenine always binds to thymine. The bond between guanine and cytosine shares three hydrogen bonds compared to the A-T bond which always shares two hydrogen bonds.
Cartilage and bone, two key types of supporting connective tissue, assist the body to maintain its posture and protect internal organs.
The collenchyma, which is made up of living cells, the sclerenchyma, which is made up almost entirely of dead cells, and the vascular tissue, which is made up of both living and dead cells. It's in charge of transporting and dispersing water, nutrients, and assimilates.
