Q: Fact 1: Increasing heat causes thermal expansion. Fact 2: Thermal fatigue cracking is notably different than thermal expansion damage. Given the two facts above, what can cause fatigue?

OPTIONS:
- cigarettes
- Dehydration
- expansion
- Pollution
- influenza
- hormones
- sweating
- smoking

A: expansion

Q: Fact 1: Arthropods are the largest phylum of invertebrates. Fact 2: Invertebrates are animals without a backbone. Given the two facts above, what are arthropods the largest phylum of?

OPTIONS:
- humans
- absorb light energy
- converting mass to energy
- fish
- animals without a backbone
- remains of prehistoric life
- h2o
- Earth orbiting the Sun

A: animals without a backbone

Q: Fact 1: Specialization occurs when competing species evolve different adaptations. Fact 2: Species is a group of interbreeding individuals. Given the two facts above, specialization occurs when competing groups of interbreeding individuals evolve different what?

OPTIONS:
- color of leaves
- fur and fat
- forces
- colors
- frontal zones
- graptolites
- sensory neurons
- adaptations

A: adaptations

Q: Fact 1: Cellular respiration is when a cell converts from oxygen and carbohydrates into carbon dioxide, water, and energy. Fact 2: Cellular respiration is a requirement for life. Given the two facts above, what is when a cell converts from oxygen and carbohydrates into carbon dioxide, water, and energy?

OPTIONS:
- kinetic energy
- requirement for life
- Evaporation
- Organic compounds
- they body they live in
- requirement for eating
- requirement for oxygen
- requirement for carbon

A:
requirement for life