The answer is D wrist joint
All matter is made up of tiny particles called atoms. <span>They are the smallest unit of matter that defines the chemical elements and their isotopes. Every substance, be it solid, liquid, or gas is made up of </span>atoms<span>. </span>
One interesting example here is when you have a certian species of birds for example and all birds from one same species have a different pattern of how their wings and body is colored. This goes for dogs and other animals as well. All of these are examples how variation withing a species related to Darwin's theory of evolution.
Answer:
E. Large molecules
Explanation:
Large molecules cannot pass through the membrane without help they are too big. This is because the membrane is very selective with what it let enters.