A woman has discovered she is pregnant. What should she avoid to reduce the risk of injuring the fetus or having a
miscarriage? What will be an ideal response?
ANSWER: Most directly, pregnant women should not smoke or consume alcohol, as both of these are
extremely deleterious to the developing fetus. Pregnant women should also minimize their caffeine intake, avoid hot tubs, and try to minimize their stress. Finally, pregnant women
should inform their doctor such that their medications can be assessed for potential danger.
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Blood entering the heart from the body passes through the heart chambers and lungs in the following order:
A. right atrium, right ventricle, lungs, left atrium, left ventricle. B. left atrium, left ventricle, lungs, right atrium, right ventricle. C. right atrium, left atrium, lungs, right ventricle, left ventricle. D. left atrium, right atrium, lungs, left ventricle, right ventricle. E. right ventricle, left ventricle, lungs, left atrium, right atrium.
The Latin phrase omnis cellula e cellula refers to a cellular principle. Which of the following statements is the best translation of this phrase?
A) Tissues are composed of similar cells. B) Cells generally are found in clusters. C) All cells arise only from preexisting cells. D) Organs are composed of tissues and cells. E) The cell is the basic unit of structure.
Many different structures make up a cell and have unique functions. Each cell structure is associated with a critical function in the cell. These pairings include
_____ microfilaments; cytoskeleton. _____ lysosomes; protein synthesis. _____ nucleus; DNA replication. _____cell membrane; barrier between the cell and the external environment _____ Golgi apparatus; modification, processing, and sorting of macromolecules.
A human population with an age structure diagram that is narrower at the base than at the top would
have ____.
a. zero population growth b. r < 0 c. r > 0 d. been affected by density independent factors e. (K ? N)/K < 1