Explanation:
The edible part of onion ( or bulb ) has no chlorophyll because it's present underground & it doesn't performs photosynthesis as sunlight is not available for the bulb. But the shoot part of the onion ( which grows up ) is green and has chlorophyll in it because it performs photosynthesis.
The answer is B because:
Cell walls are made of cellulose and proteins (hence II).
Animal cells don't have cell walls (only cell membrane) but plant cells do so IV
They must be semipermeable since materials for example carbon dioxide and water for photosynthesis have to go into the cell <em>some</em> way.
Answer:
C
Explanation:
Because it’s carrying the flow of white blood cells to the site of injury in order to clog it up
