___________ is/are the fastest and most powerful form of radiation and can easily penetrate through lead.
A) Alpha rays
B) Beta rays
C) Gamma rays
D) Neutron energy
Ans: D) Neutron energy
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The sediment at the lake bottom is the _____ zone.
A. littoral B. limnetic C. profundal D. benthic E. pelagic
Genes are physically located within ______.
A. chromosomes B. centrosomes C. kinetochores D. microtubules
Galactosemia is an inherited disorder caused by ____ galactose
a. the overproduction of b. the excess break down of the protein c. the inability to break down d. metabolizing excess fat molecules and attaching them to e. the over-consumption of
Which of the following is a disadvantage of gas exchange in water, as compared to gas exchange in air?
a. Air is less dense than water.
b. Air contains a higher concentration of oxygen. c. Less energy is needed to move air over a gas exchange surface. d. Oxygen diffuses more slowly through air than water. e. Air is less viscous than water.