Q: Exemplified by a lit match bursting into flame or the process that forms fossil fuels, chemical reactions vary greatly in terms of what? Choices: - duration - density - power - speed A:
speed

(Question)
Q: What is the technical term for species that produce their own body heat and regulate their internal temperature independently of the outside temperature? Choices: - hydrostatic - Phototrophic - osmotic - endothermic A:
(Answer)
endothermic

Ques: Q: What is another name for mother of pearl? Choices: - pigment - enamel - calcium - nacre A:
Ans: nacre

(Q).
Q: What two lenses comprise a compound microscope? Choices: - polarized and focal - scope and focus - concave and convex - objective and eyepiece A:
(A).
objective and eyepiece

Ques:Q: Though viruses are not considered living, they share two important traits with living organisms: they have genetic material and they can undergo what process? Choices: - generation - sexual reproduction - learning - evolution A:

Ans:evolution

Ques:Q: What is the energy that flows as a result of a difference in temperature? Choices: - electricity - polarity - magnetism - heat A:

Ans:
heat