50. because its 140 in 1991 and about 90 in 1992.
The answer is Tyrosine. Conditionally essential amino acids is when non essentials amino acid becomes essential. In Phenylketonuria Tyrosine becomes a conditionally essential amino acid that must be provided in the diet. Phenylalanine accumulates and fails to convert to tyrosine during this condition.
The correct option is B.
The field of science is very dynamic and it thrives on discovery of new evidences. When new evidence are found for a particular phenomenon, the existing phenomenon has to be adjusted to fit the new discovery. Air pollution was once named to be responsible for global cooling because enough evidence was not available then to prove otherwise but now overwhelming evidences show that pollution is responsible for global warming.<span />
Answer:
Explanation:
Sea lions eat mackerel as food so the more sea lion there are, the less mackerel there are and vice versa
This is probably the answer but if it's wrong for some reason, just comment on the answer
Answer:
Answer is C. Tracking the price of oil when a war in the middle east interrupts the flow of crude oil.
Explanation:
Scientific method is a kind of carrying out research for identifying and subsequently solving a problem. it can also be explained as series of steps in using scientific investigations for answering issues about the nature.
