It because they give us oxygen and without oxygen we would all die from oxygen deprivation.
the process that gives us oxygen is photosynthesis
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For the answer to the question above, the answer is "Systemic Acquired Resistance''.
<span>it is a whole-plant resistance response and it occurs by following an earlier localized exposure to a pathogen. It is analogous to the innate immune system that can be found in the animals, and there is also an evidence that SAR in plants and innate immunity in the animals may be evolutionarily conserved.</span>
<span>The direction the nerve impulse travels relative to the central nervous system.
I hope this helps!</span>
Answer:
The plasma membrane is responsible for maintaing B: homeostasis
Answer:
its a noun
the semipermeable membrane surrounding the cytoplasm of a cell.