Answer:
Cardiac muscle cells must obey the all-or-none law of contraction
They are called amendments. The first 10 are the Bill of Rights.
Answer:
A. organizing the energy level.
Explanation:
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Answer:
Ancient Greek and Rome.
Explanation:
They were both major parts through the time period with the most powers and most cultural and most efficient.
Answer:
B. Three rings cleaved bark
Explanation:
xylem is arranged in rings. The xylem vascular tissue has water and minerals that is from the roots that go to.the rest of the tree. It also gives the tree physical support. Its found inside the cambium layer.
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