Q. The contraction cycle is triggered by the rise in ________ released from the sarcoplasmic reticulum (SR).
A. Ca2+
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Answer:
where are the answer choices?
Explanation:
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Answer:
The development of all karst landforms requires the presence of rock which is capable of being dissolved by surface water or ground water.
Explanation:
- Eijiro <3
Answer:
<h2>b. It allows spinal nerves to exit the spinal cord. </h2>
Explanation:
- The vertebral column is an important characteristic of vertebrates.
- The formation of the vertebral column takes place from the notochord in the vertebrate.
- The vertebral column is also known as the spine or generally called the backbone.
- It forms the spinal canal that is responsible to provide protection to the spinal cord.
- The vertebral column is divided into many regions into human beings and some other organisms according to its function and position.
- It has many functions such as protection of the spinal cord, allow passes of spinal nerves and some other.
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