Genes are units of hereditary information/ factors.
Answer:
The air in the lungs has a higher concentration of oxygen than that of oxygen-depleted blood and a lower concentration of carbon dioxide. This concentration gradient allows for gas exchange during respiration.
Explanation:
Answer: The correct answer for the blank is- d. inhibitory neurotransmitter.
Neurotransmitters are the chemical messengers in the body, which are released by the axon terminal of neuron ( also called nerve cell) and transmit nerve impulse to the neighboring cell ( which could be a muscle cell or a nerve cell) .
There are primarily two types of neurotransmitters that are-
1) Excitatory neurotransmitter and 2) Inhibitory neurotransmitter.
Inhibitory neurotransmitter have inhibitory effects on the neuron that is they reduce the chances that a neuron will fire an action potential. In other words, they are responsible for slowing signals between neurons.
Example- The most common inhibitory neurotransmitter is GABA ( gamma amino butyric acid)
Do you have options? If not try going with: They are lesser than fluid than in the surrounding membrane.
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