.5 kg rock is thrown straight up in the air 17m and it takes 2 seconds how long will it take for the rock to fall back to the ground?

Which of the following was a characteristic of a dromaeosaur? modified front claw grasping with their forelimbs both a and b none of the above

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.

Isolated volcanic peaks on the ocean floor are