The Four Most Common Elements Found in Living Things Are

question 13

Multiple Choice

The four most common elements found in living things are

• A) nitrogen, oxygen, phosphorus, and carbon.
• B) carbon, oxygen, nitrogen, and hydrogen.
• C) carbon, oxygen, potassium, and calcium.
• D) oxygen, calcium, hydrogen, and carbon.

---

Definitions:

Flexibility

The quality of bending easily without breaking, referring to the range of movement in a joint or series of joints.

Intervertebral Disks

The cartilage pads that sit between the vertebrae in the spine, acting as shock absorbers and allowing for flexibility.

Synovial Joints

Joints encased in a fluid-filled capsule, allowing for wide range of motion and flexibility, such as knees and elbows.

Ligaments

Tough, fibrous tissues that connect bones to other bones at joints.