23 questions
which of the following is NOT a renewable energy resource
tidal
wind
petroleum
water
Which of the following energy resource cannot be used up
natural gas
petroleum
wind
coal
How much of water on Earth is FRESH SURFACE water?
0.3%
3%
97%
30%
Which long specialized cell helps transmits information quickly throughout an organism?
neuron cell
enzyme cell
muscle cell
blood cell
cells shaped like tiny, flexible disks that can move through narrow blood vessels
nerve cells
xylem cells
red blood cells
white blood cells
nerve cell
red blood cell
xylem cell
muscle cell