ANSWER:
C. Red blood cell, heart tissue, circulatory system
BECAUSE:
Red bloods cells make up heart tissues and heart tissues make up the organs in the circulatory system.
Red bloods cells are therefore simpler than heart tissues and heart tissues simpler than the circulatory system.
It can’t be A because blood is simpler than the circulatory system
It can’t be B because nerves and the brain are simpler than the nervous system
It can’t be D because bone is simpler than the skeletal system
The ion which is entering axon terminal A is called Ca²⁺.
The effect which it has is, it causes the release of neurotransmitter from the axon terminal.
Axon terminal is termed as distal termination of telodendria of an axon. Another name for the axon terminal is synaptic boutons. Axon is a long, slender projection which is of a nerve cell.
Their work is to conduct electrical impulses which are referred to as action potential which is a way of neurons of the cell body. Neurons use electrochemical signals and also a neurotransmitter chemical which transmits impulses from one neuron to another.
Axon terminals are being separated from neighboring neurons by a gap known as a synapse. Both the axon terminal and neuron they come from a point which is called the presynaptic neuron.
Answer:
A ^^
Explanation:
Fluctuations in the phosphorus cycle in aquatic ecosystems a. can lead to changes in the growth rates of aquatic populations The increase in phosporus amount in the aquatic ecosystem will increase the amount of algae within that ecosystem. When the amount of algae is increased, the aquatic organisms will have a LOT of food source which will increase the growth rate within their population.
