Negatively charged subatomic particles that have almost no mass are called:
A. electrons.
B. protons.
C. neutrons.
D. ions.
E. polymers.
A
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The transport of molecules out of the urinary filtrate and into the blood is called ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following best represents analogous structures?
A. the arm of a human and the leg of a human B. the wing of a bat and the wing of a butterfly C. the arm of a human and the wing of a bat D. the wing of a butterfly and the wing of a bee
Mitochondrial DNA is primarily involved in coding for proteins needed for protein complexes of the electron transport chain and ATP synthase. Therefore, mutations in mitochondrial genes would most affect _____
A) DNA synthesis in cells of the immune system B) the movement of oxygen into erythrocytes C) generation of ATP in muscle cells D) the storage of urine in the urinary bladder
Which of the following components is NOT involved in the phosphorus cycle?
A) Some rocks and soil B) The atmosphere C) Consumers D) Decomposers E) Producers