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

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?
****
A: adaptations

Problem:OPTIONS:
- in its arms
- Through play
- heat energy
- joules
- Riding a bike
- cancer
- running and lifting
- parasites

Fact 1: Exercise increases a body 's strength. Fact 2: Exercise is more than running and lifting. Given the two facts above, what increases a body's strength?
****
A: running and lifting

Problem:OPTIONS:
- legumes
- elms
- Fungi
- Metal
- heat
- Trees
- h2o
- fungus

Fact 1: Fungi are the only organisms that can decompose wood. Fact 2: Beech woods are without doubt a very rich habitat for fungi. Given the two facts above, what decomposes beech?
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A: Fungi

Problem:OPTIONS:
- hats
- looseness
- dogs
- woody stems
- food and shelter
- cells
- storing water
- In their leaves

Fact 1: Trees have woody stems covered with bark. Fact 2: Bark on mature trees runs 6 to 12 inches thick, insulating the tree against fire damage. Given the two facts above, what do trees have that insulates?
****
A:
woody stems