The compound ammonia is composed of a single nitrogen atom bonded by single bonds to three hydrogens. How many electrons total are contained in the three single bonds?
A. 3
B. 4
C. 5
D. 6

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

Type the letter that represents the correct location for each particle type below.

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction