Where is the magnetic field of any magnet the weakest?
a.
slightly left and slightly right of the center
b.
at the poles
c.
halfway between the poles
d.
halfway between the center and each pole

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature above 37 degrees celsius (98.6 degrees f)? describe what might happen if the temperature decreased by 10 degrees celsius.

What did hunter gathers do to alter the environment?

Diagram of the evolution of land plants?