Across
- 1. a macromolecule made of amino acids, essential for body structure and function
- 3. proteins that speed up chemical reactions in the body
- 6. a body fluid that transports oxygen and nutrients
- 8. single called organisms that can be both helpful and harmful
- 10. organelle that stores water, nutrients, or waste inside a cell
- 12. the movement of particles from an area of high concentration to lower concentration area
Down
- 2. a group of tissues working together to perform a specific function
- 4. a thing that surrounds a cell and controls what enters and leaves
- 5. what organisms consume to get energy and nutrients
- 7. the basic unit of all living things
- 9. a cold region near the North Pole; also related to biological adaptation
- 11. condition that negatively affects the structure of function of organism