In which sealed container would the organisms be able to continuously cycle O2 and CO2 gases? A. A terrarium with tadpoles and a pool of water

B. An aquarium with fish and plastic plants

C. An aquarium with rocks and snails

D. A terrarium with a plant and a snail

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.

In each transformation of energy , some energy what?