Answer:
They play an important role in the oxygenation of Earth's atmosphere roughly around 2.3 billion years ago.
Explanation:
The given blank can be filled with two electrons.
The K, L, M, N are the four shells in an atom. The K shell is the initial that is present nearest to the nucleus of the atom, and it comprises two electrons. The L shell can withstand eight electrons, M shell can withstand eighteen electrons, and however, the atom attains stability if the last (valence) shell comprises eight electrons.
Would a dendrite receive neurotransmitters or release neurotransmitters?
↘@nswer
↔Dendrite will receive a neurotransmitters whereas axon release neurotransmitters.
The answer to this question would be: smell
The sensory organ that catch smell is located in the nose and will send the signal into the olfactory bulb. The olfactory bulb is located in the bottom part of the brain, near the hippocampus(which was the center of memory), and amygdala (which was the center of emotion).
They do not need light or electricity.
