Fact 1: Muscle contraction occurs when muscle fibers get shorter. Fact 2: Exercise causes muscles to contract. Given the two facts above, answer the question "What causes muscle fibers to get shorter?" with the following options: - friction - acetic acid - heat or cold - sweating - electrically - resistance - Damages them - exercise
exercise

Fact 1: Cell division often causes growth. Fact 2: Cell division is relatively slow and requires a lot of energy. Given the two facts above, answer the question "What often requires a lot of energy?" with the following options: - pigeons - monkeys - horizon - growth - humans - omnivores - waiting - distance
growth

Q: Fact 1: Balance is the ability to sense and maintain body position. Fact 2: Balance is a proprioceptive function. Given the two facts above, answer the question "Proprioceptive functions sense and maintain what?" with the following options: - the sense of smell - sensory neurons - salt and water. - cellular respiration - body position - temperature - gasoline - kinetic energy
A: body position

Question: Fact 1: Most salamanders use their sense of smell to find a mate. Fact 2: Salamanders are a type of amphibian. Given the two facts above, answer the question "what uses their sense of smell to find a mate?" with the following options: - eyes - members of their own species - passenger pigeons - Something that is self-aware - a type of amphibian - plants - eat plants or other animal - h2o
Answer: a type of amphibian

*Question*
Fact 1: Aruler is used for measuring the length of an object. Fact 2: Length Rope lengths are measured in meters. Given the two facts above, answer the question "What can a ruler measure the meters of?" with the following options: - an imaginary distance - a black hole - quarks - loose soil - animals - athletes - sea urchins - an object
**Answer**
an object

*Question*
Fact 1: Energy is used for heating a building by a heating system. Fact 2: Solar energy is the energy in the sun's rays. Given the two facts above, answer the question "What can be used for heating a building by a heating system?" with the following options: - the Sun's rays - peachleaf willow - engines - oxygen - photosynthesis - photons - air - hydrogen and oxygen
**Answer**
the Sun's rays