input with options: Q: The three long muscles on the back of the knee are part of which group? A:
OPTIONS:
- synovial joint
- patella
- adductors
- hamstring group
output: hamstring group

Q: Q: The digestive, excretory, and reproductive systems of amphibians share a body cavity called what? A:

OPTIONS:
- stoma
- anus
- urethra
- cloaca

A: cloaca

input: OPTIONS:
- Deciduous forest
- Desert
- freshwater
- aquatic Now, answer this question: Q: Some flatworms are free-living carnivores that live mainly in which type of habitats? A:
A:
output: aquatic

Q: Dependent on the frequency of sound waves, what term described how high or low a sound seems to a listener? A:

OPTIONS:
- curve
- wavelength
- direction
- pitch

Answer: pitch

Problem: OPTIONS:
- at high altitudes
- in the arctic
- in mould colonies
- in the tropics
Q: Q: Where are some of the greatest concentrations of species found? A:
Answer: in the tropics

Q: Why do birds need a light-weight body? A:

OPTIONS:
- for cooling
- water flotation
- food shortages
- to stay aloft

Answer:
to stay aloft