Heterocyst-forming cyanobacteria differentiate highly specialized cells to provide fixed nitrogen to the vegetative cells in a filament. In the presence of a source of combined nitrogen such as nitrate or ammonium, Anabaena PCC 7120 grows as long filaments containing hundreds of photosynthetic vegetative cells.
Most of the time a earthquake happens
their was no choices so hope this is what you were looking for
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Answer:
im pretty sure it should be C
Explanation:
each of the cells in the body would 'differenciate' (as the name suggests) to become specialized cells that are going to work within an organisms different organs and body parts
Viruses aren't made up of living cells, like plants and animals are, they either consist of DNA or RNA surrounded by coating of protein. Versus also like the properties of living things. They have no energy, they do not produce waste, and they do not respond to stimuli. they do not reproduce independently but must rely on invading living cells and feeding off a them.
Therefore, there are many reasons my viruses are considered non living but the biggest reason is because they cannot survive on their on and have to feed and get their nutrients off of living things
And bacteria is considered living because it can do all these things that viruses cannot do.
An ectotherm gets its heat from external sources
(Remember "ecto" means outer, "endo" means inner)
