<span>The discoverers of DNA were not James
D Watson and Francis Crick. They are the first scientist to formulate an
accurate description of the DNA’s (deoxyribonucleic acid) complex ,
double-helical structure. They discovered that base pairing nucleotides must
be; adenine and thymine; and cytosine and guanine. These base pairs are held
together by a hydrogen bond, atype of chemical reaction that s easy to break
and easy to reform. The statement is “DNA
is a double helix made of two strands linked together with hydrogen
bonds.”</span>
Sometimes a single gene can influence many traits is the correct answer
The fish moves up the river to spawn, a walrus stays warm in the cold ocean are the results of an organism having lipid in its body.
Explanation:
The fish have energy deposited in the form of fat or lipids, they do not feed during spawning and gets energy from the fats.
A walrus has good insulation of fat layer over their bodies as they live in the arctic region. The thick layer of lipid/ fat helps it to survive in freezing temperatures.
Nitrogen Cycle
the tranconsumers obtain nitrogen directly from wheresfer of nitrogen from the atmosphere to the soil, to living organisms, and back to the atmosphere