Problem: OPTIONS:
- animals
- smoking pipes
- Sulfur dioxide
- Chemical energy
- fur and fat
- antibodies
- smoking tobacco
- Pesticides
Q: Fact 1: Antibodies are large, Y-shaped proteins that recognize and bind to antigens. Fact 2: Allergic reactions are caused by substances called antigens. Given the two facts above, allergic reactions can be caused by?
Answer: antibodies

Problem:OPTIONS:
- otters
- spider
- amoeba
- clam
- alligator
- ducks
- goldfish
- voles

Fact 1: Mollusks live in most terrestrial, freshwater, and marine habitats. Fact 2: Mollusks tend to be shore-dwelling creatures. Given the two facts above, what can live in salt water?
****
A: clam

Fact 1: Excretion is the process of removing wastes and excess water from the body. Fact 2: Parasites excrete toxic wastes. Given the two facts above, what do parasites do with waste?
OPTIONS:
- kill them
- remove
- die
- migrate
- harm them
- expelled
- propagate
- a hazard
remove

Fact 1: Fish have a circulatory system with a two-chambered heart. Fact 2: Fish are backboned aquatic animals. Given the two facts above, the two-chambered heart of some backboned aquatic animals is part of their:?
OPTIONS:
- aerobic capacity
- three-chambered heart
- biological diversity
- it keeps an organism warm
- the body's largest organ
- circulatory system
- salmon
- swimming system

Answer: circulatory system

Question: Fact 1: Amphibians are the first true tetrapods, or vertebrates with four limbs. Fact 2: All vertebrates more advanced than fish have four limbs, each with up to five fingers or toes. Given the two facts above, amphibians with what are more advanced than fish?
OPTIONS:
- four eyes
- sensory neurons
- rapid expansion
- layers of fat
- four limbs
- kinetic energy
- tails
- many limbs
Answer: four limbs

input: OPTIONS:
- heat
- energy
- motors
- cells
- cars
- wind
- coal
- Gas Now, answer this question: Fact 1: Wind is used for producing electricity. Fact 2: This electricity can be used to power households. Given the two facts above, what can be used to power households?
A:
output:
wind