Which describe the functions of the Calvin cycle? Select all that apply.

1. It provides oxygen to the atmosphere.
2. It converts light energy to chemical energy.
3. It provides organisms with energy in the form of sugars.
4. Sugar molecules are produced from carbon dioxide.

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4. Sugar molecules are produced from carbon dioxide.

Explanation:

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the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.