The first land plants appeared around 470 million years ago, during the Ordovician period, when life was diversifying rapidly. They were non-vascular plants, like mosses and liverworts, that didn't have deep roots
The lining of the uterus, and the fallopian tube.
Answer:
When there is a cut, and platelets are coming, its positive feedback. But when the clot is formed and increased platelets concentration at the site create a negative feedback to stop sending more platelets for clot formation.
What is the role of water in the photosynthetic process? Water splits into oxygen, hydrogen ions, and electrons to replace the lost electrons of photosystem II in the light dependent reaction. Also as hydrogen ions pass through ATP sythase, ATP is formed to use in the light independent reactions.
Answer:
C. Wind Energy
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