Q: Fact 1: Amphibians have sense organs to smell and taste chemicals. Fact 2: Frogs, toads and salamanders are amphibians. Given the two facts above, what can frogs, toads and salamanders use to smell and taste chemicals?

OPTIONS:
- sense organs
- Chemical energy
- matter vibrating
- larynx
- Organic compounds
- ocular organs
- gills
- harmful substances

A: sense organs

Q: Fact 1: Waxy leaves are used for storing water by some plants. Fact 2: Many cacti also have a waxy coating that helps the plant conserve moisture in desert climates. Given the two facts above, what do some cacti use waxy leaves for?

OPTIONS:
- hydration
- Chemical energy
- storing water
- it needs them
- support
- survival
- to stay warm
- cellulose

A: storing water

Q: Fact 1: Staying warm has a positive impact on an animal 's survival. Fact 2: Effective insulation is the way to keep the warm air warm. Given the two facts above, effective insulation has a positive impact on an animal's what?

OPTIONS:
- heat energy
- survival
- water
- food
- growth
- ideas
- Energy.
- energy

A: survival

Q: Fact 1: Thick fur can be used for keeping warm. Fact 2: Mammals have warm blood, and fur or hair, and breathe air. Given the two facts above, what do mammals keep warm with?

OPTIONS:
- fats
- ears
- skulls
- Limbs
- food
- tails
- tissue
- hair

A:
hair