4. nutrients move through ecosystems in different ways. which nutrient cydes through organisms, rivers, rain, and the atmosphere?
water
vitamins
carbon
phosphorous

How many chromosomes are in a gold fish?

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline. which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?