Answer:
a. Calcium is an electrolyte that assists in the transmission of nerve impulses.
Explanation:
In the process of muscle contraction, the action potential (electrical impulse) releases the calcium stored in the sarcoplasmic reticulum located in the muscle.
Calcium then flows into the cytoplasm, where the actin and myosin filaments are located, which will interact with each other to promote muscle contraction.
Thus, it can be concluded that calcium does play an important role in nerve impulse transmission.
Given the above statements, it is concluded that the correct alternative is "A"
.
As for the other statements: Calcium, as described above, also participates in the process of muscle contraction, however it is the muscle cells that contract, not the nerve cells (Statement B).
In addition, calcium does not participate in the formation of muscle cells (Statement C), nor can it make the blood slightly acidic (Statement D) because it has alkaline (basic) character.
Answer:
B. the wind tunnel must be run by highly skilled workers.
correct me po if imma wrong ^-^
B. Plants
Explanation:
Plants are the main producers of the world's total oxygen output into the atmosphere.
Oxygen is a by product of photosynthesis in plant.
- During photosynthesis, green plants manufacture their food using carbon dioxide and water in the presence of sunlight.
- They produce glucose in the process.
- The by product of this process is oxygen gas.
- Oxygen gas is released into the atmosphere by this process.
Learn more:
Photosynthesis brainly.com/question/4216541
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b a d c
Explanation:
because the cell has not developed fully
