The characteristics that suit a species for survival are transmitted from one generation to the next through genes which are the units of hereditary information.
<h3>What is a Gene?</h3>
This is referred to as the basic functional unit of heredity and is composed of DNA which are passed from the parent to the offspring.
This is done through the process which is known as meiosis in which four unique daughter cells are produced.
This is therefore how characteristics that suit a species for survival are transmitted from one generation to the next through the gene and is the most appropriate choice.
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Answer;
A Both make it possible for the conditions in the interior to be different from the conditions outside.
Explanation;
Groups of molecules called microspheres may have preceded the living cells of today. Microspheres are tiny bubbles filled with groups of large organic molecules; they can form under very specific conditions. These microspheres may be a lot like the vesicles formed from the organic compounds taken off of the modern meteorites. Microspheres are not cells, but they do share some characteristics with cells.
These bundles of molecules are able to maintain an internal environment different from the surroundings outside the bubble. They also have a simple way of storing and releasing energy. They expand by absorbing additional molecules until they reach an unstable size, and then they split into smaller microspheres. This division is not true reproduction or cell division, but it may be a precursor to it.
All cells must have DNA because DNA also has genes or alleles that are passed on to offspring.
