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.
Electrons are brought to the electron transport system by the oxidation of NADH and FADH2.
The electron transport chain is a group of proteins located within the inner membrane of the mitochondria which transport electrons. Electrons are passed from one member of the transport chain to another in a series of redox reactions, forming a proton gradient which is then used for ATP production.
NADH and FADH2 are reduced electron carriers which are oxidized into NAD+ and FAD near the beginning of the electron transport chain.
Answer:
it can help them by seeing what birds are in your area an any new species that might have traveled to your area but it can also help scientist learn about some of the birds.