Macromolecules provide structural support, a source of stored fuel, the ability to store and retrieve genetic information, and the ability to speed biochemical reactions. Four major types of macromolecules—proteins, carbohydrates, nucleic acids, and lipids—play these important roles in the life of a cell.
Due to extreme (too much) cell division, a mutation of cells will occur and that is the cancer within humans.
<span>Biotic factors are the living components of an
ecosystem. They are sorted into three groups: producers or autotrophs,
consumers or heterotrophs, and decomposers or detritivores.</span>
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.
The atomic number reflects how many electrons there are, and there must be an equal charge<span>. therefore, there are the same amount of protons as there are electrons. so if it has 81 protons, we look for number 81 in the </span>periodic<span> table, Thallium</span><span>Thallium is the answer to this
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