Speed = frequency x wavelength
100 x 0.2 = 20
Answer:
Lipase doesn't react at 1.5 while pepsin at 1.5t is at its most active stage
Explanation:
A.
Sound absorption depends more on the thickness of a material than its color.
Answer:
Natural selection
Explanation:
this is where the term "survival of the fittest" comes from. The toughest survive and make offspring and the weak don't.
