Surface water is warmer than deep-ocean water. The deeper you go into the ocean the colder it is. This is because the warmth from the sun cannot reach the water near the bottom of the ocean.
"DNA" is the one among the following choices given in the question that is the organic molecule described in the question. The correct option among all the options that are given in the question is the third option or option "C". I hope that this is the answer that has actually come to your desired help.
Answer and Explanation:
The Cretaceous–Paleogene extinction, which occurred around 66 million years ago, is defined as a mass extinction that wiped out around three-quarters of species on Earth.
Among the organisms that disappeared during this event, we find mammals, birds, fish, sharks, pterosaurs, birds, reptiles, insects, and some plant species.
This event is marked by the presence of a sediment layer known as the K-Ph boundary which showed important levels of iridium, an element that is abundant in craters. Therefore, after its discovery, scientists hypothesize this extinction occurred due to the impact of the giant Chicxulub crater which changed the conditions of the atmosphere.
The genetic code defines how codons, sequences of nucleotide triplets, specify which amino acid will be added next during process of translation (protein synthesis).
The genetic code is universal among organisms. That means that the same codons code for the same amino acids in different organisms.
It is known which amino acids are coded by which codons. If we know sequences of amino acids, we then also know sequences of nucleotides in DNA/RNA. If we know DNA/RNA sequences we can then reveal relationships among different organism by compering similarities in those sequences.
If one trophic levels population increases or decreases too much, it can decrease the amount of producers, this decreasing the amount of energy available in food web which can cause population crash.
