1. the vertebrae in the backbone

2. cartilage is

3. joints and ligaments

4. tendones connect muscles to

5. cells produce energy from

Write a paragraph about why the respiratory system is important and we need to breathe easily. (guys i really need ) x(

At school, there have been a lot of rumors going around about how certain sexually transmitted diseases are spread. which skill would be most valuable to you take the necessary steps to learn what you need to know to protect yourself? a. self-direction b. critical thinking c. problem solving d. effective communication       select the best answer from the choices provided.

Wjat are substances intentionally added to food to produce a desired effect?