Answer:
Explanation:
C) food accumulation
Phloem transports food from the leaves to other parts of the plant, and xylem tissue transports water and minerals absorbed by the roots. When phloem tissue is removed from a part of the stem, the food is not able to reach the lower part of the plant, causing the food to accumulate near the part of the plant where phloem was removed. This causes that portion to appear swollen.
Evolutionary biologists theorize that
the first living organisms on earth are single-celled prokaryotes. The two
prokaryotic domains are archaea and bacteria. Bacteria varies from
disease-causing pathogens to valuable photo synthesizers and symbionts while archaea
are diverse, but not pathogenic and they have the characteristics to live in
extreme environments. Moreover, the presence of prokaryotes is highly
dominating for they can be found everywhere even inside our bodies but they are
difficult to count, classify or detect.
<span>The element that is uniquely found in all proteins and some vitamins is nitrogen. </span>Nitrogen is a part of amino acids and urea. Amino acids are the building squares of all proteins. Proteins involve not just basic parts, for example, muscle, tissue, and organs yet in addition compounds and hormones basic for the working of every living thing. Urea is a side-effect of protein processing.
Answer:
RNA is a polymer with a ribose and phosphate backbone and four different bases: adenine, guanine, cytosine, and uracil. The first three are the same as those found in DNA, but in RNA thymine is replaced by uracil as the base complementary to adenine.
Explanation:
Yes, they are found in every living organism.