B. Carbon fixation begins the Calvin Cycle.
Answer:
"The correct statement is, “All the outer planets have low density.”
The outer planets such as Saturn, Jupiter, Neptune, and Uranus are the giant’s planets but in terms of density, they are less due to the gas and jovian.
The densities between the inner and outer circle are different due to the rock-solid.
Explanation:
"Leydig Cells" secretes & synthesize androgens such as testosterone
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