B. atoms of a diffrent elements are exactly the same
Answer:
<em>The correct option is A) mesosphere only</em>
Explanation:
The solar radiation is not absorbed by the mesosphere of the Earth. Hence, the temperature of the mesosphere decreases as the altitude increases. At the mesopause, the temperature begins to increase with altitude, and this trend continues in the thermosphere.
On the other hand, in the stratosphere, temperature increases with altitude. Hence, other options are not correct.
Answer:
Ribosomes
Explanation:
Ribosomes are organelles with the main purpose of protein synthesis in cells, both in eukaryotes and prokaryotes.
Ribosomes create proteins through translation of mRNA, and the linking of amino acids.
These linked amino acids are the proteins, which can also develop into more complex types of protein structures, such as tertiary and quaternary structures.
So, the correct answer is Ribosomes.
<h2>
Meselson and Stahl conducted an experiment to determine the correct proposed methods of DNA replication was semi-conservative
. the three proposed models for DNA replication are semi-conservative, conservative, and dispersive.</h2>
Explanation:
In Semi-conservative replication model, the two strands of DNA uncoil from each other. It perform with the original strand and a new strand.
In Conservative replication model, DNA replication didn't open at all, but the parent strands remains undamaged by creating a new and separate molecule that consists of two new strands.
In Dispersive replication model, DNA replication results in two DNA molecules that consists of both parental and daughter DNA.
He demonstrated that semi-conservative DNA replication is an universal mechanism allocated by all organisms on Earth.