The major causes of death that account for the large differences in life exxpectancy between less developed and more developed countries are b. infectious and parasitic diseases.
Answer:ryanodine receptor, or RYR) in the sarcoplasmic reticulum (SR), causes opening of the RYR. In cardiac muscle, opening of the L-type calcium channel permits influx of calcium into the cell
Explanation:
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The carbon cycle moves through virtually all of the earth's spheres.
<h3>Carbon cycle</h3>
There are 4 majors spheres of the earth:
- Atmosphere
- Geosphere or Lithosphere
- Biosphere
- Hydrosphere
The carbon cycle moves through the air (atmosphere), oceans (hydrosphere), organisms (biosphere), and the soil (geosphere).
Thus, the carbon cycle moves through all the spheres of the earth.
More on the carbon cycle can be found here: brainly.com/question/1627609
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The transcription process occurs in three stages:
initiation, chain elongation, and termination.
Transcription is the process in which the information in a strand of DNA is copied into a new molecule of messenger RNA.
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