Hello to answer your question fully
<span>Archaebacteria
Because, </span><span>Archaebacteria is the oldest type of bacteria, which exist at the beginning of the world back when Oxygen still hasn't exist in its environment
Signed by, Expert Sargedog</span>
<span>He is able to whiff it because of Diffusion. It's a process in which gasses spread to fit the container in which they are, they diffuse around the storage. Her parfume spreads through the mall and becomes weaker but is still there. He can feel it because the parfume spread and came to him before her.</span>
Answer: It is A
Explanation: C and D are jokes/ complete lies. B is wrong because Darwin did observe that animals and plants adapted (evolved) to suit their environments.
Answer and Explanation: The answer is false, as it is a network of neurons, however it is embedded in the wall of the gastrointesinal system.
