Answer:
False
Explanation:
Most of the marine debris results from the plastic dumped into the ocean. This debris accounts for 80% of the total marine debris. As per the united nation report, 8 million tons of plastic is thrown into the ocean every year which floats in the ocean water . Mostly the oceans having tourist destination or high density residential areas consists of high amount of plastic debris. Thus, Marine debris mostly originates from oceangoing ships is a false statement.
Answer:
The correct answer is B.
Explanation:
Adenine and guanine are purine bases, thymine and cytosine are pyrimidines which make up the structure of the DNA. They are not tautomers. They can however get involved in tautomerism which is the transfer of protons and electrons between chemical compounds that are usually structurally isomers. So the answer is B.
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Answer :
Nitrogen fixation is the process by which atmospheric nitrogen is converted by either a natural or an industrial means to a form of nitrogen such as ammonia. In nature, most nitrogen is harvested from the atmosphere by microorganisms to form ammonia, nitrites, and nitrates that can be used by plants.
Explanation:
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Answer:
a. more than one pathway at the same time.
Explanation:
Basically, RTK (receptor kinase receptor) principally activate many different transduction pathways about 10 or more and many cellular response in living cells.Thus, its activates more than one signal transduction pathways at once, (compare to G-protein ), and with this mechanisms it aids in coordination of some aspects of cell growth and cell reproduction .
