A(n) ____________________ is an animal that has, at least during part of its life cycle, a notochord, a dorsal hollow

nerve cord, and pharyngeal slits. Fill in the blank(s) with the appropriate word(s).


chordate

Environmental & Atmospheric Sciences

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Which of the following must we know when we carry out a titration?

A) the stoichiometric ratio of the reactants B) the volumes and concentrations of all reactants C) both a and b D) neither a nor b

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Which of the following does not contribute to controlling the motion of the wind?

A) pressure gradient force B) friction C) Coriolis effect D) ozone layer (and hole

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How do the electron-dot structures of elements in the same group in the periodic table compare with one another?

A. Elements of the same group have the same number of valence electrons. B. The number of electrons in the electron-dot structure will equal the group number for each element of the group. C. The structures differ by exactly two electrons between vertically consecutive elements. D. The number of valence shell electrons increases by one for each element from the top to the bottom of the group.

Environmental & Atmospheric Sciences

________, which tells us how wet air is, is the actual water content of the air compared to how much water the air could potentially hold, expressed as a percentage

A) Absolute humidity B) Relative humidity C) Specific humidity D) Latent heat E) Specific heat

Environmental & Atmospheric Sciences