Answer:
Plant cells need both chloroplasts and mitochondria because they perform both photosynthesis and cell respiration.
Explanation:
Chloroplast converts solar energy into chemical energy during photosynthesis, while mitochondria, the powerhouse of the cell, produces ATP- the energy currency of the cell during respiration.
Answer:
d. the american dream is realized through hard work
<span>The correct answer is attenuated live vaccine.</span>
<span>
Attenuated live vaccines are vaccines that use a weakened or attenuated form of the viruses or bacteria that causes a disease. Viruses or bacteria are given in a relatively small dose to replicate in the vaccinated person and to stimulate an immune response. They create a strong and long-lasting immune response but the limiting factor is that there is a possibility for a virus to revert to a form which is capable of causing disease.</span>
Acetylcholine is referred to the neurotransmitter that is released from the
parasympathetic ganglion.
Acetylcholine is the main neurotransmitter found in the parasympathetic
nervous system. Its effects are either excitatory or inhibitory. It is a chemical
which is released by neurons to aid transmission of signals to other cells of
the body.
It helps in the contraction of the muscles, peristaltic movement of the
stomach, as a vasodilator etc.
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