There are 3 basic structural types of joints: fibrous, cartilaginous, and synovial. If a joint does NOT move, you can assume that it's either ___ or ___. (Choose 2).

The correct answer is - fibrous, cartilaginous.

Explanation:

In the body, there are joints named after the type of tissue attached to them and these joints are:

1. fibrous joints - these are connected with dense connected tissues and called immovable or fixed joints.

2.cartilaginous joints - these are joined by cartilage tissue. These joints are also not able to move freely.

3. synovial joints are known as movable joints and can move freely. These are present in a fluid-filled capsule for better movement.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.