Problem:OPTIONS:
- principals of aerodynamics
- it keeps an organism warm
- Animal survival
- the environment
- the color of the feathers
- how the bird flies
- food that is scavenged
- the call the bird makes

Fact 1: Bird beaks are generally adapted for the food they eat. Fact 2: Birds eat food that they scavenge. Given the two facts above, what are beaks adapted to?
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A: food that is scavenged

Problem:OPTIONS:
- Energy.
- two
- waves
- fires
- the Sun
- sunlight
- rivers
- erosion

Fact 1: The gravitational pull of the Moon on Earth 's oceans causes the tides. Fact 2: High tide is when the best waves come in. Given the two facts above, what does the gravitational pull of the Moon on Earth 's oceans cause?
****
A: waves

Problem:OPTIONS:
- sunlight
- resuscitation
- respiration
- energy
- mitosis
- exoskeleton
- reproduction
- Energy.

Fact 1: Cellular respiration is when a cell converts from oxygen and carbohydrates into carbon dioxide, water, and energy. Fact 2: Lymphocytes are B cells, T cells and NK cells. Given the two facts above, what do lympophocytes use to convert oxygen and carbohydrates into carbon dioxide, water and energy?
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A: respiration

Problem:OPTIONS:
- peachleaf willow
- green photosynthetic
- Chlorophyll
- photosynthesis
- Most plants
- graptolites
- members of their own species
- in the autumn season

Fact 1: Sporangia produce spores that develop into tiny, heart-shaped gametophytes. Fact 2: Gametophytes of extant genera are green, photosynthetic,and have a long ribbon shaped thallus. Given the two facts above, sporangia produce spores that develop into what gametophytes?
****
A:
green photosynthetic