Topsoil is richest in
a. minerals
b. sand.
c. clay.
d. organic matter
e. none of these
Answer: d
You might also like to view...
What color of light is not strongly absorbed by chlorophyll?
A. green B. violet-blue C. red D. yellow-orange
Answer the question using the accompanying graph. Which portion of the graph shows the activation energy in the
absence of enzyme?
a. A b. B c. C d. W + X e. Y + Z
Sex-linked genes are ____
a. expressed differently based on the sex of an individual b. linked to the SRY sex-determining gene c. located on sex chromosomes d. determinants of the sex of an individual e. found exclusively in one sex or the other
Avery, MacLeod, and McCarty showed that DNA was the transforming principle by demonstrating that mice survived
when injected with a mixture of dead virulent bacteria and live nonvirulent bacteria that were treated with a DNA degrading enzyme. If RNA was the genetic material, what would have been the effect on the mice? Why?
What will be an ideal response?