The answer is <span>Gap Junction
Gap junction is a small gap between the cells that used to transmit signall to the cells. This gap will allow the heart muscle to be activated in unison. Coordinated contractions are important for heart muscle because it creates the force that needed to pump the blood.</span>
Answer:
Mammals, insects, fish and plants all have different systems of exchanging gas. For mammals we breathe into our lungs, for fish they use gills and insects use spiracles.
Explanation:
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Answer:
it was one of either it depends so Both
Explanation:
Its constructive force.
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Answer:
C: Both
Explanation:
Both plant and animal cells uses energy through cellular respiration.
