The flexible jaw of a snake is a: 

During hibernation, animals show which of the following changes?

1. It lowers its body temperature
2. It slows down its heartbeat
3. It lowers its breathing
4. All of the above

______________ allows an organism to survive better in its environment

1. Adaptation
2. Variation
3. Mutation
4. Physiology

Animals migrate because of:

1. Unavailability of food or water resource

2. Extreme temperatures

3. Inadequate conditions to reproduce

4. All of the above

The phenomenon in which animals go into a deep sleep is known as

1. Mimicry
2. Camouflage
3. Migration
4. Hibernation

Camels can drink up to how many liters of water in one go?

1. 46
2. 50
3. 100
4. 65

Arctic foxes living in polar regions show which adaptation?

1. Mimicry
2. Camouflage
3. Migration
4. Hibernation

Populations do not change if their environment changes.

1. True
2. False

Charles Darwin was a __________ naturalist.

1. French
2. English
3. Dutch
4. Greek

Natural selection favored melanic moths to survive in industrial areas because:

1. The tree trunks were light in color.
2. The dark tree trunks camouflaged the dark moths.
3. Robins ate most of the dark moths.
4. The speckled moths bred with the darker moths.

The trees on which these moths used to live were white, but now they have been covered in soot from coal factories. Which moth will be more successful in this environment??