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jennifer cornejo
StudyStack Set 1 WEEK 7
| Term | Definition |
|---|---|
| negative feedback | A process that reverses a change to keep the body’s conditions stable. |
| homeostatis | The body’s ability to maintain a stable internal environment. |
| DNA | The molecule that carries genetic instructions for all living things. |
| biomolecules | The chemical compounds (like proteins, lipids, carbs, and nucleic acids) that make up living organisms. |
| Diffusion moves... up or down a concentration gradient? | down |
| dermis | The middle layer of skin that contains blood vessels, nerves, and glands. |
| vasodilation | The widening of blood vessels to increase blood flow. |
| what is bone? | A hard connective tissue that supports, protects, and helps move the body. |
| calcium | A mineral needed for strong bones, muscle contraction, and nerve function. |
| vasoconstriction | The narrowing of blood vessels to reduce blood flow. |