Q: Which of the following best describes the purpose of cellular respiration? OPTIONS:
- to provide energy for cell activities
- to produce sugar for storage in cells
- to release oxygen for breathing
- to supply carbon dioxide for photosynthesis
A: to provide energy for cell activities

Which example would result in new cells that are most different from the parent cells?
OPTIONS:
- yeast cells splitting into new cells
- bacteria cells dividing into new cells
- skin cells dividing to produce more skin cells
- sperm and egg cells uniting to produce fertilized egg cells

sperm and egg cells uniting to produce fertilized egg cells

Q: What energy transformation occurs when an electric lamp is turned on? ---- OPTIONS:
- electrical energy to light and heat energy
- light energy to electrical and mechanical energy
- heat energy to electrical and light energy
- electrical energy to mechanical and heat energy

A: electrical energy to light and heat energy

A geologist found fossils of horse bones in different rock layers of a canyon. The fossils in the lower levels show shorter bones than those in the upper-level fossils. Which conclusion is based on the geologist's observations?
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OPTIONS:
- Horse's reproduce using two parents.
- Horse's became larger over time.
- Smaller Horse's went extinct, and then larger Horse's formed.
- Smaller Horse's are better suited to the environment than larger Horse's.

Horse's became larger over time.

Question:
Why does the leaf of a plant look green?
OPTIONS:
- Because it absorbs green light
- Because it reflects green light
- Because it absorbs only yellow and blue light
- Because it reflects a mixture of yellow and blue light
Answer:
Because it reflects green light

*Question*: Comparing the skeletons of which of the following fish would best show the evolution of a fish species? OPTIONS:
- a male fish and a female fish that could produce offspring
- the same fish just before it received a cut and after it healed
- a fish that lived recently and a fish that lived a long time ago
- the same fish just after it hatched and when it was full-grown
*Answer*:
a fish that lived recently and a fish that lived a long time ago