When hemoglobin binds hydrogen ions it is acting as a(n)
a. neutralizer.
b. buffer.
c. acid.
d. base.
e. cation.
B
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As physical activity ramps up, a person typically begins to breathe more rapidly, to sweat, and to flush red. Describe how each of these physical responses of the body is connected to the reactants and products of the process of aerobic respiration.
What will be an ideal response?
Monocots demonstrate which of the following characteristics? Select all correct choices
A. vascular bundles located around the outer circumference of the stem B. a vascular cambium that produces secondary xylem C. new roots that consistently form at the bases of stems D. nodes giving rise to single leaves
What vulnerability is introduced by cell-surface signaling receptors?
a. They can cause a hole to form in the plasma membrane. b. They can introduce cells into the wrong areas of the body during development. c. They provide highly specific binding sites for viruses and other pathogens. d. They can result in non-specific binding foreign cells.
What is the thick fluid, rich in proteins and lipids, which is deposited in an animal's egg during its formation?
a. germ layer b. placenta c. yolk d. corpus luteum e. gastrula