Problem: OPTIONS:
- display
- attraction
- presentation
- courtship
Q: Q: What are the special mating behaviors in birds called? A:
Answer: courtship

Problem:OPTIONS:
- solar fission
- nuclear fission
- combustion
- nuclear fusion

Q: What process converts the sun's hydrogen nuclei into helium? A:
****
A: nuclear fusion

Q: An electric stove changes electric current to what form of energy? A:
OPTIONS:
- thermodynamic
- kinetic
- nuclear
- thermal
thermal

Q: What organ system consists of the skin, nails and hair? A:
OPTIONS:
- nervous system
- digestive system
- endocrine system
- integumentary system

Answer: integumentary system

Question: Q: Deficiency of what is symptomized by nausea, fatigue and dizziness, and can be triggered by excessive sweating? A:
OPTIONS:
- impurities
- salts
- calories
- electrolytes
Answer: electrolytes

input: OPTIONS:
- pressure
- fuel
- exercise
- energy Now, answer this question: Q: Kinetic and potential are two forms of what? A:
A:
output:
energy