Q: What holds together the small molecules called nucleotides which make up nucleic acids? Choices: - permanent bonds - dissonance bonds - curvature bonds - covalent bonds A:
covalent bonds

(Question)
Q: The actual amount (mass) of gasoline left in the tank when the gauge hits "empty" is a lot less in the summer than in the winter. the gasoline has the same volume as it does in the winter when the "add fuel" light goes on, but because the gasoline has expanded, there is what? Choices: - lower gravity - same mass - more mass - less mass A:
(Answer)
less mass

Ques: Q: Higher temperatures increase the rate of reaction in a lot of chemical reactions because they increase the frequency of what interaction between reactant particles? Choices: - electric - explosions - waves - collisions A:
Ans: collisions

(Q).
Q: The white fluffy part of popcorn is also what? Choices: - phosphor - membrane - jiffy - endosperm A:
(A).
endosperm

Ques:Q: All photosynthetic organisms contain a pigment called what? Choices: - Fiber - carbonate - sodium - chlorophyll A:

Ans:chlorophyll

Ques:Q: What two things are used in optical instruments to reflect or refract light? Choices: - orientations and lenses - mirrors and magnifiers - prisms and microscopes - mirrors and lenses A:

Ans:
mirrors and lenses