number 1 is not part of the theory of evolution.
Evolution is change in the heritable characteristics of biological populations over successive generations.
I know C they may change shape when they bind substrates
Maybe visceral muscles ( found in the stomach, intestines and the blood vessels )
Because the lung has two bronchi, it can still function if one bronchus is blocked by a foreign object. No gas exchange will happen to the affected side, and the other lung will compensate for the loss of air. The blocked portion though can become inflamed and can lead to infection and damage.
