Answer:
D. It is able to form colonies and produce oxygen.
Explanation:
Cyanobacteria are the photoautotrophs and carry out oxygenic photosynthesis. These prokaryotic organisms use water molecules as an electron donor during light-dependent reactions of photosynthesis and release oxygen gas as a by-product.
Cyanobacteria are considered to be the first organisms on the earth to perform oxygenic photosynthesis and are supposed to be responsible for the present-day oxidative atmosphere of the earth. Most of the cyanobacteria are colonial forms and are present as colonies of a large number of cells. However, unicellular solitary forms are also present.
Metabolism!
This is the collective name for all of the chemical reactions that occur in cells.
Answer:
Photosynthesis is the base of energy flow, because it converts energy from the sun into fuel for plants and animals. Photosynthesis is the end result of energy flow, because it consumes organic molecules produced by cellular respiration.
Explanation: