besides proteins, what do some viruses have an envelope of?
bioaerosols parasites more abundant gravity heat energy Energy red blood cells body fats
A B C D E F G H
Phospholipids are body fats, too.
some viruses have an envelope of body fats and proteins
besides proteins, what do some viruses have an envelope of? (A) bioaerosols (B) parasites (C) more abundant (D) gravity (E) heat energy (F) Energy (G) red blood cells (H) body fats