The main function of the nematocyst is prey capture. The correct option among all the options given in the question is option "B". The nematocysts are used by Cnidarians like hydra, jellyfish etc. It is actually a specialized capsule that contains venom and it is used to paralyze and capture small preys for food and also to sting any enemy that comes near.
D, since it only affects the sex cell which are for forming offspring.
Answer: meristematic
Explanation:
Growth occurs throughout the plant's life, a process known as indeterminate growth. This indeterminate growth is possible because, unlike animals, plants have perpetually undifferentiated tissues called meristems. Read about plant meristems.
Product.
Sugar , O2 = CO2, H2O, ATP(energy)