Fact 1: Mutation creates new genetic variation in a gene pool. Fact 2: Genetic variation is the basis for natural selection. Given the two facts above, what is a basis for natural selection?

OPTIONS:
- fur and fat
- competition
- mutation
- root growth
- insects
- animals
- trees
- cows

Answer: mutation

Problem: OPTIONS:
- food
- Energy
- protein
- money
- Self love
- pain
- Microscope
- Energy.
Q: Fact 1: Cell division is how organisms grow and repair themselves. Fact 2: Every cell in the body requires protein for normal function. Given the two facts above, what do organisms require to repair themselves?
Answer: protein

Problem:OPTIONS:
- layers of fat
- Lymphocytes.
- fur and fat
- bone cells
- muscle cells
- the skin
- Red blood cells
- animals

Fact 1: Lymphocytes are the key cells involved in the immune response. Fact 2: An allergy attack is an immunal response. Given the two facts above, what are the key cells in an allergy attack?
****
A: Lymphocytes.

Fact 1: Conserving water can be used for survival in a dry environment. Fact 2: Also, camels conserve their water. Given the two facts above, what do camels hoard to survive?
OPTIONS:
- air
- food
- cells
- protein
- seeds
- warmth
- fat
- water
water

Fact 1: Sweat is used for adjusting to hot temperatures by some animals. Fact 2: High humidity interferes with evaporation of the sweat. Given the two facts above, what interferes with an animal's ability to adjust to hot temperatures?
OPTIONS:
- snow
- prolactin release
- lice
- nervous system
- Endocrine system
- high humidity
- Pituitary gland
- low moisture

Answer: high humidity

input with options: Fact 1: Erosion causes deposition. Fact 2: Desertification implies soil erosion. Given the two facts above, desertification implies what?
OPTIONS:
- contamination
- dry conditions
- permineralization
- soil deposition
- Decrease bodily water
- humans disturb it
- population movement
- threatened
output:
soil deposition