Problem:OPTIONS:
- humans
- crop yeilds
- food safety
- health
- Cooking
- Animal survival
- recipe requirements
- farm production

Fact 1: Irradiating food can be used to kill existing microorganisms in the food. Fact 2: Food irradiation offers a solution for addressing the growing concerns associated with food safety. Given the two facts above, killing microorganisms in food is important to?
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A: food safety

Problem:OPTIONS:
- the eyes
- bears
- four limbs
- insects
- barnacles
- salmon
- sponges
- fungi

Fact 1: Adult sponges are sessile. Fact 2: Sessile Attached permanently, immobile. Given the two facts above, adult what are attached permanently, immobile?
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A: sponges

Problem:OPTIONS:
- hatched
- babies
- fertile
- warm
- white
- older than their parents
- born without a backbone
- always stillborn

Fact 1: Monotremes are mammals that reproduce by laying eggs. Fact 2: When the egg is ready to hatch, it hatches. Given the two facts above, the young of monotremes are ?
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A: hatched

Problem:OPTIONS:
- Generating heat
- lowered energy cost
- metabolic reaction
- heating liquids
- by making heat
- adding heat
- increases a body's strength
- preventing heat transfer

Fact 1: All chemical reactions require activation energy to get started. Fact 2: Catalysts lower the activation energy. Given the two facts above, in what way does a catalyst help in chemical reactions?
****
A:
lowered energy cost