Q: In which situation would it be an advantage to ship a product by plane rather than by truck? OPTIONS:
- The product is very heavy and relatively large.
- The product is sensitive to changes in pressure.
- The product must be delivered a long distance soon after it is made.
- The product must be delivered to several sites located within a radius of 50 miles.
A: The product must be delivered a long distance soon after it is made.

Which example describes a behavioral adaptation?
OPTIONS:
- A bird builds its nest in the ash near a volcano.
- A whale has the ability to hold its breath for 20 minutes.
- A fox's hair is white in the winter and brown in the summer.
- A monkey has long arms that allow it to swing from one branch to another.

A bird builds its nest in the ash near a volcano.

Q: Which unit is used to indicate the amount of energy in food? ---- OPTIONS:
- ounce
- degree
- calorie
- gram

A: calorie

Which of the following structures is not present in animal cells?
===
OPTIONS:
- cell membrane
- cell wall
- mitochondrion
- nucleus

cell wall

Question:
Sand and iron particles that are similar in size and color are mixed together in a beaker. What would be the best method of separating the particles?
OPTIONS:
- Use tweezers to separate them.
- Use a magnet to separate them.
- Add water to the mixture.
- Pour the mixture into a filter.
Answer:
Use a magnet to separate them.

Q: Which of the following is a similarity 20 between x-ray waves and sound waves? OPTIONS:
- Both transfer energy.
- Both require a vacuum.
- Both have the same speed.
- Both have the same frequency.
A:
Both transfer energy.