Answer:
Plants need chlorophyll to conduct photosynthesis
Explanation:
In general, yes, the dorsal blood vessel of a worm be seen from the worm's exterior because a worm's "skin" is very thin. Although of course there are exceptions.
Answer -
T-Cells are white blood cells that go and invade thru out the body to attack
Whereas a B-Cell creates and stays behind the frontline and creates antigen and also let the T-Cells know about whom they should attack and what type of enemy it has to get rid of.
Ty for waiting :) I was trying to back up my Answer. Thank you for being part of this community and allowing me to answer - Johny
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