The circulatory system is the only way by which an animal can supply oxygen and nutrients to its cells, or remove waste materials from the cells.
Answer the following statement true (T) or false (F)
False
It is not true that the circulatory system is the only way by which an animal can supply oxygen and nutrients to its cells, or remove waste materials from the cells. Some invertebrates have such thin body walls that each cell is exposed to water and can independently exchange gases and rid itself of wastes.
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A solution contains 0.0000001 (10-7) moles of hydroxyl ions [OH-] per liter. Which of the following best describes this solution?
A) acidic: H+ acceptor B) basic: H+ acceptor C) acidic: H+ donor D) basic: H+ donor E) neutral
The resting membrane potential is indicated by
a. A. b. B. c. C. d. D. e. E.
A pedigree is useful because it ________
A) shows the genotype of a particular individual B) can help predict the chances of an offspring displaying a particular trait C) shows the phenotype of one individual D) can look at multiple traits at one time
Oxygen is required for ____________ to take place.
A. the electron transfer system B. light-dependent reactions C. light-independent reactions D. glycolysis