Atrain accelerates at a rate of 2.5 km/hr/sec. during the acceleration period, its velocity changes by 55 km/hr. choose the exact time of the train's acceleration.

a. 1,200 s

b. 22 hr

c. 22 s

d. 0.045 s

Which organelles are involved in energy conversion

Ascientist is examinin the cell is disrupted when she damages one specific type of macromolecule g the function of macromolecules in a cell she notices that movenent of large molecules into and out of

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.