Why do ferns only thrive in moist environments? What will be an ideal response?
ANSWER: To reproduce, the flagellated sperm must swim to the egg. Thus, fern reproduction is
dependent on a moist environment.
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Why is blood pressure low in fish? a. Blood must flow through sinus venosus
b. Water enters slightly deoxygenated. c. Fish are not susceptible to hypertension conditions. d. Blood does not return back to the heart.
An allosteric enzyme:a
has an active site that binds to the substrate and an allosteric site that binds to the product. b. allows the movement of molecules and ions from one part of the cell to another. c. catalyzes both oxidation and reduction reactions. d. raises a reaction's activation energy so that the rate of the reaction declines. e. allows a substance other than the substrate to bind to the enzyme, thereby activating or inactivating it
Tirso de Molina is credited with launching the fictional character Don Juan in a play he wrote called El burlador de Sevilla y convidado de piedra (The Trickster of Seville). Many authors and playwrights, including W. A. Mozart, have written further accounts of this notorious seducer of women. Don Juan's "mating style" can best be characterized as _________ and ________.
a) pair bonding, polygynous b) polygamous, polygynous c) monogamous, polygamous d) polyandrous, monogamous e) polygamous, pair bonding
Osmosis moves water from a region of
A) high solute concentration to a region of low solute concentration. B) low solute concentration of to a region of high solute concentration. C) low concentration of water to a region of high concentration of water. D) negative osmotic potential to a region of positive osmotic potential. E) hypertonic solution to a region of hypotonic solution.