Four of the following will stimulate the production of males in water fleas. Which one is the exception?
a. spring
b. warm water
c. salty water
d. high competition for resources
e. crowding
ANSWER: a
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Which of the following has the highest blood pressure?
a. right ventricle b. right atrium c. aorta d. left atrium e. pulmonary circulation
carbon fixation
What will be an ideal response?
In glycolysis, for each molecule of glucose oxidized to pyruvate _____
A) two molecules of ATP are used and two molecules of ATP are produced. B) two molecules of ATP are used and four molecules of ATP are produced. C) four molecules of ATP are used and two molecules of ATP are produced. D) two molecules of ATP are used and six molecules of ATP are produced.
The partial negative charge at one end of the water molecule is attracted to a partial positive charge of another water molecule. What is this type of attraction called?
a. a polar covalent bond b. an ionic bond c. a hydration shell d. a hydrogen bond e. a hydrophobic bond