input: OPTIONS:
- layer of body fat under skin
- lips
- sweat glands
- To conserve energy
- toes
- food and shelter
- It helps them survive
- by keeping them warm Now, answer this question: Fact 1: Mammals have a layer of fat under the skin to help insulate the body. Fact 2: Insulation is very important in a cold climate like Arkhangelsk. Given the two facts above, what aspect of mammals is especially important in cold climates?
A:
output: layer of body fat under skin

Fact 1: Mutations are essential for evolution to occur. Fact 2: When that occurs, several things happen. Given the two facts above, mutations are what to evolution?

OPTIONS:
- Plants growth
- essential
- optional
- competition
- dangerous
- non essential
- voluntary
- allow growth

Answer: essential

Problem: OPTIONS:
- competition
- root growth
- mitosis
- meiosis
- speciation
- cellular respiration
- Plants growth
- Animal survival
Q: Fact 1: Evolution occurs by a process called natural selection. Fact 2: Speciation is an extension of evolution. Given the two facts above, what occurs by a process called natural selection?
Answer: speciation

Problem:OPTIONS:
- Fungi
- People
- Man
- Fish
- trees
- Dogs
- animal
- Birds

Fact 1: Scales are used for protection by scaled animals. Fact 2: Fish scales are also composed of chitin. Given the two facts above, chitin can be used for protection by whom?
****
A: Fish

Fact 1: Contact between rocks over long periods of time causes rocks to smooth. Fact 2: Because of the big wave action, the rocks are very smooth. Given the two facts above, what causes contact between rocks?
OPTIONS:
- wind
- heat
- erosion
- deltas
- waves
- motion
- seasons
- rivers
waves

Fact 1: Menopause occurs when menstruation stops occurring, usually in middle adulthood. Fact 2: Middle adulthood begins around age 35 to 40 and continues through age 65 to 70. Given the two facts above, in what timeframe does menopause typically occur?
OPTIONS:
- Earth orbiting the Sun
- an organism's body
- Veins and arteries.
- the rest of the body
- By wind and rain
- 35-65 years old
- major threat to health
- Decrease bodily water

Answer:
35-65 years old