Which of the following organs aids in swimming for fish? a.
fins
c.
gills
b.
lungs
d.
scales

Please select the best answer from the choices provided

A
B
C
D

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.