Lipids, Although there is four classes of macromolecules that constitute all living matter: Carbohydrates, Lipids, Proteins, and Nucleic acids. Best answer i'd go with is, Lipids.
Answer: <u>Any supporting details</u> as your trying to focus on the main ideas and views.
Explanation:
None, I major in biology, and you said it was a biology question so this is my best hypothesis.
Answer:
B
Explanation:
A solar system is just a few planets which are smaller than nebulae or galaxies.
Nebulae is pretty much a cloud of dust and gas but it's still smaller than a galaxy
And then the universe kind of includes <em>everything </em> so there's nothing bigger than that
It is quite possible to combine the same two elements to form two different compounds. An example would be carbon dioxide CO2 and carbon monoxide CO. Thus, two elements can form different types of bonds and end up with completely different compounds. Like, Hydrocarbons are compounds made of Hydrogen and Carbon only, and there are many different hydrocarbons. There is a limited number of elements, but a larger number of compounds because of the example demonstrated above.