which of the components of a balanced diet has no nutritive value.? A . carbohydrates B . roughage C . vitamins D. mineral salts

Which of the following examples can cause gene flow between populations? a. an increase in predators to a population of zebra b. a volcanic eruption that kills half of a population of mice c. bird droppings that contain seeds from a different location d. a person that sprays a toxin on a group of mosquitoes

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems