Question: Choose your answer.

What is a source of food and growth for a mushroom?

OPTIONS:
- rotting organisms
- sunshine
- minerals in soil
- water in soil
My Answer: rotting organisms

Question: Choose your answer.

Genes are unable to determine a person's

OPTIONS:
- eye color.
- athletic ability.
- number of teeth.
- shape of earlobes.
My Answer: athletic ability.

Question: Choose your answer.

Sheep Challenge Evolution A species of sheep lives on the Scottish island of Hirta. Hirta has plenty of grass for the sheep to eat, and no natural predators of the sheep live on the island. Some sheep have dark wool, and some have light wool. The sheep with dark wool tend to be much larger and stronger than the sheep with light wool. However, researchers have found that in the last 20 years, the sheep with light wool have increased in number. Usually, strength and size help animals survive and breed. A new sheep predator is introduced to the island. Which change to the sheep population will most likely occur first?

OPTIONS:
- a decrease in the population of sheep with dark wool
- a decrease in the population of sheep with light wool
- an increase in the population of sheep with dark wool
- an increase in the population of sheep with light wool
My Answer: a decrease in the population of sheep with light wool

Question: Choose your answer.

In 1783, Europe was unusually cold and foggy. The rain was acidic. Which event most likely caused the unusual climate in Europe that year?

OPTIONS:
- A logging company deforested millions of acres in South America.
- A major earthquake and tsunami changed the path of the Gulf Stream.
- A major volcanic eruption released ash and sulfur gas into the atmosphere.
- An increase in the use of automobiles released more carbon dioxide into the atmosphere.
My Answer:
A major volcanic eruption released ash and sulfur gas into the atmosphere.