The term eukaryotic means ____
a. having many nuclei
b. before the nucleus
c. having a true nucleus
d. not having a nucleus
e. not having DNA
ANSWER: c
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How does the release of histamine by mast cells help the innate immune response?
A. It signals neutrophils to migrate to the site of infection. B. It makes it easier for neutrophils to move from the bloodstream to the site of infection. C. It increases the volume of blood flow in the area of the infection. D. Two answer options are correct: It makes it easier for neutrophils to move from the bloodstream to the site of infection AND increases the volume of blood flow in the area of the infection.
These white blood cells are in interstitial fluid,
phagocytize almost everything except uninjured body cells, and secrete cytokine which alerts the adaptive immune system to threats. These white blood cells are
a. neutrophils. b. macrophages. c. T lymphocytes. d. dendritic cells. e. eosinophils
In the conversion of pyruvate to ethanol, which of the
following is (are) produced? a. acetaldehyde b. carbon dioxide c. NADH d. acetaldehyde and carbon dioxide only e. acetaldehyde, carbon dioxide, and NADH
What is the type of weak bond between the hydrogen of one molecule and the nitrogen of another molecule, where the two don't actively share an electron?
A) ionic bond B) covalent bond C) hydrogen bond D) disulfide bond E) hydrophobic bond