4. Birds flying south for the winter are demonstrating
5. Muscles that cause a joint to bend are called

Apart of an ecosystem that can restrict the growth of a population is referred to as

When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal

Which statement best describes a typical difference that could be found between the “analysis” and “conclusion” sections of a lab report?