Which of the following elements are commonly found as part of biological macromolecules? in other words, which elements will we spend a lot of time talking about?

Carbon is commonly found as part of biological macromolecules and it may contain nitrogen, hydrogen and oxygen.

We will spend time talking about Carbon and hydrogen, nitrogen, oxygen.

Explanation:

Biological macromolecules are smaller molecules that join to form larger molecules that are necessary for life.

The four major classes of biological macromolecules are carbohydrates, proteins, lipids and nucleic acids. They are major components of cells and perform several functions.Biological macromolecules contain carbon as the major elements and may also contain nitrogen, oxygen, hydrogen, phosphorus, sulphur and some minor elements.

Carbon Is a major element and all lives are carbon dependent.

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.

a covalent bond, specfically triple bond