The answer is b hope it help
The basic structure of a steroid differ from other macromolecules such as carbohydrates by having a four ring structure whereas a carbohydrate do not have. A steroid is a group of organic substances which has four rings that are arranged in a certain configuration. Examples are testosterone, estradiol and lipid cholesterol. It will always have seventeen carbon atoms in its structure. Carbohydrates, on the other hand, are a group of organic substances that consist carbon, hydrogen and oxygen atoms typically in a 2:1 ratio of the hydrogen and oxygen atoms. So, it would have an empirical formula of Cx(H2O)y.
its B. Organ b/c the plants root are part of the plant
The mitochondria breaks down food into molecules the cell can use.
I believe it is D, hopefully this helps. I could be wrong but that’s what it looks like to me I only added 40 and 50
