Answer: Option A.
Transverse tubules rapidly move the action potential to the interior of the muscle potential.
Explanation:
Transverse tubules are cylindrical pockets found in the plasma membrane of muscle cells. They are formed from phospholipid bilayer or sarcolemma of skeletal or cardiac muscle cells. They have membrane that have large concentration of ion channels,transporters and pump. They permit action potention into the cell and also to a particular structure sarcuplasmic reticulum. They play a role in regulating cellular calcium concentration.
Covalent bond? Carbon is usually the structure for a polymer Bc it can make up so many things including covalent bonds used to make polymers
Oxygen would slowly deplete into carbon dioxide as there is no photosynthesis to create more. Earth would not be able to support human life later on.
Number 3
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Answer:
prophase is the first phase
Explanation:
PMAT
PROPHASE
METAPHASE
ANAPHASE
TELOPHASE
