Question: Choose your answer.

Which structure of a bird is correctly paired with its function?

OPTIONS:
- claws for obtaining food
- wings for eliminating waste
- feathers for breathing
- eyes for growing
My Answer: claws for obtaining food

Question: Choose your answer.

A student is investigating changes in the states of matter. The student fills a graduated cylinder with 50 milliliters of packed snow. The graduated cylinder has a mass of 50 grams when empty and 95 grams when filled with the snow. The packed snow changes to liquid water when the snow is put in a warm room. Which statement best describes this process?

OPTIONS:
- Cooling causes the snow to melt.
- Cooling causes the snow to freeze.
- Heating causes the snow to freeze.
- Heating causes the snow to melt.
My Answer: Heating causes the snow to melt.

Question: Choose your answer.

As an airplane climbs in the sky, the pilot notices ice crystals forming on the windshield. This happens because

OPTIONS:
- blizzards occur more often at higher altitudes.
- friction with the atmosphere causes ice to develop.
- water evaporates faster at higher altitudes, resulting in ice crystals.
- moisture on the outside of the plane freezes due to colder air at higher altitudes.
My Answer: moisture on the outside of the plane freezes due to colder air at higher altitudes.

Question: Choose your answer.

In early 2003, the Human Genome Project identified the sequence of base pairs in the genes in human DNA. With all of this information, many of the functions of the genes are still unknown. Currently, scientists are studying many of these genes in order to learn more about them. What is the significance of this new genetic discovery?

OPTIONS:
- It can provide new methods for creating diseases.
- It can lead to faster chromosome replication.
- It can lead to a simpler structure for DNA.
- It can provide new ways to treat diseases.
My Answer:
It can provide new ways to treat diseases.