If muscle fibers get shorter during exercise, then what causes muscle fibers to get shorter? Answer choices: - friction - acetic acid - heat or cold - sweating - electrically - resistance - Damages them - exercise
exercise

If growth often requires a lot of energy, then what often requires a lot of energy? Answer choices: - pigeons - monkeys - horizon - growth - humans - omnivores - waiting - distance
growth

Q: If proprioceptive functions sense and maintain body position, then proprioceptive functions sense and maintain what? Answer choices: - the sense of smell - sensory neurons - salt and water. - cellular respiration - body position - temperature - gasoline - kinetic energy
A: body position

Question: If atype of amphibian uses their sense of smell to find a mate, then what uses their sense of smell to find a mate? Answer choices: - 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*
If aruler can measure an object's meters, then what can a ruler measure the meters of? Answer choices: - an imaginary distance - a black hole - quarks - loose soil - animals - athletes - sea urchins - an object
**Answer**
an object

*Question*
If the sun's rays can be used for heating a building by a heating system, then what can be used for heating a building by a heating system? Answer choices: - the Sun's rays - peachleaf willow - engines - oxygen - photosynthesis - photons - air - hydrogen and oxygen
**Answer**
the Sun's rays