Describe the role of the immune system in fighting disease

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.

Math focus 4. calculate a map has index contours at 250 m, 500 m, and 750 m. what is the contour interval?