The sun rays are received by the plants and explell oxygen and we breath the oxygen to be able to survive
Because it determines if it is isolated or not. This means if other substances can enter or not. This usually relies on the membrane with it´s pores. The pores help the membrane be selectively permeable in what it lets in and out.
Answer:
True
Guard cells close openings in the leaves slowing down water loss.
The cerebrum is a large part of the brain containing the cerebral cortex it lies either in front or on top of the brainstem
