A chemical equation uses symbols to show reactants and products of a chemical reaction tRUE OR FALSE

True

Explanation:

This is because a chemical equation is the equation where chemical reactions are represented with symbols involving both reactants and products.

The reactants are written on the left hand side and products are written on the right hand side. Symbols are use to represent the chemical elements involved in the reaction. Solid, liquid and aqueous are also use as indicator whether the reactions are in that form.

parasites can detrimentally affect their host, but also must not allow their host to die before they can complete their life cycle. some parasites have complex life cycles with many different hosts, and have had to find ways of persisting in many different environments during the change from one host to another. ectoparasites live outside the body of the host, and can more easily  disperse, but are  more exposed to predators, parasites, parasitoids. endoparasites live inside the body of the host, and are therefore protected from the outside environment. but they can be  attacked by the host's immune system. they have therefore developed  mechanisms for dispersal such as  complex life cycles.

b is the correct answer