Problem: OPTIONS:
- CO2
- H2O
- He
- food
- feed
- urea
- O2
- H20
Q: Fact 1: Thirst is used to make an animal realize that it needs to replenish its bodily water by the body. Fact 2: An example is H2O which shows water is made of two atoms of hydrogen stuck to one atom of oxygen. Given the two facts above, thirst shows an animal that it needs what?
Answer: H2O
Problem: OPTIONS:
- four limbs
- exoskeleton
- warm
- scales
- sweating
- covering
- bareness
- opening
Q: Fact 1: Thick fur can be used for keeping warm. Fact 2: Most mammals have hair, or fur, covering their body. Given the two facts above, most mammals have a body what for keeping warm?
Answer: covering
Problem: OPTIONS:
- genetic diversity
- Predators
- gene flow
- growth
- Plant reproduction
- Reproduction
- Protection
- Digestion
Q: Fact 1: An animal needs to attract a mate to reproduce. Fact 2: Pheromones have long been known to exist in animals, as scents that attract sex partners. Given the two facts above, what are pheromones used for?
Answer:
Reproduction