Fact 1: Muscles can only contract. Fact 2: Quadriceps contractions and leg raises are begun immediately. Given the two facts above, which are muscles?

OPTIONS:
- to move people
- quadriceps
- mechanical
- critical organs
- bones
- heat or cold
- joints
- tendons

Answer: quadriceps

Problem: OPTIONS:
- human
- water vapor
- mammals
- scales
- It expands
- permeable
- furry
- to stay warm
Q: Fact 1: Amphibians have permeable skin that easily absorbs substances from the environment. Fact 2: Amphibians have lungs, but they also breathe through their skin. Given the two facts above, what type of skin easily absorbs air to breathe through?
Answer: permeable

Problem:OPTIONS:
- sensory neurons
- Energy.
- Bodily water
- kinetic energy
- alveoli
- the skin
- an organism's body
- spinal column

Fact 1: Mollusks are invertebrates such as the common snail. Fact 2: Invertebrates are animals who lack a backbone or spinal column. Given the two facts above, what does an animal like a mollusk lack that many other animals have?
****
A: spinal column

Fact 1: Mollusks have a circulatory system with one or two hearts that pump blood. Fact 2: Mollusks have a simple heart, which pumps the blood throughout the body. Given the two facts above, what kind of heart do mollusks have?
OPTIONS:
- organ
- epidermal
- fossils
- ligt
- three
- warmth
- warm
- simple
simple

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?
OPTIONS:
- heat
- energy
- motors
- cells
- cars
- wind
- coal
- Gas

Answer: wind

input with options: Fact 1: Astronauts require preserved food for extended flights. Fact 2: Space travel is for trained astronauts only. Given the two facts above, what require preserved food for extended flights?
OPTIONS:
- geese flocks
- space travelers
- Dehydration
- space aliens
- consumers
- objects that have mass
- athletes
- small bees
output:
space travelers