Are red squirrels omnivores herbivores or carnivores

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?

Which tool could you see a plant cell? a. a filter b. a microscope c. a microwave d. an electromagnet