Problem:OPTIONS:
- h2o
- remains of prehistoric life
- the sun
- oxygen
- absorb light energy
- primitive green plants
- Chlorophyll
- biological diversity

Fact 1: Algae have varied life cycles. Fact 2: Algae on Turf Plant Pathology Algae on Turf Algae are primitive green plants. Given the two facts above, what have varied life cycles?
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A: primitive green plants

Problem:OPTIONS:
- density
- kinetic
- volume
- simple
- forces
- grams
- Joules
- viscosity

Fact 1: Abalance is used for measuring mass of an object. Fact 2: Mass The base unit of mass is the gram. Given the two facts above, what is a balance used for measuring in an object?
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A: grams

Problem:OPTIONS:
- aggression
- cells
- smoking tobacco
- water
- smoking
- killing insects
- oxygen
- cigarettes

Fact 1: Aggression is behavior that is intended to cause harm or pain. Fact 2: Behaviorally, aggression is any behavior whose intent is to intimidate or harm another animal. Given the two facts above, what harms others?
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A: aggression

Problem:OPTIONS:
- Plants growth
- by adaptation
- vitalism
- Plant reproduction
- theistic evolution
- competition
- orthogenesis
- mechanical

Fact 1: Evolution occurs by a process called natural selection. Fact 2: Adaptation and natural selection are discussed. Given the two facts above, how does evolution occur?
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A:
by adaptation