If producers use energy and minerals to make food, then what use energy and minerals to make food? Answer choices: - trees - plant life - humans - producers - bears - elephants - Most plants - ferns
producers

If the urinary system excretes a substance used in drug testing, then which bodily system excretes a substance commonly used in drug testing? Answer choices: - Evaporation - urinary system - animals - aqueous solution - cardiovascular system - opiate system - Integumentary system - sweating
urinary system

If hair and skin share some of the same structures and basic functions, then what shares some of the same structures and basic functions? Answer choices: - hair and skin - sensory neurons - an organism's body - animals - volume and plants - gravity and clouds - density and humans - Veins and arteries.
hair and skin