Fact 1: DNA contains genetic instructions for proteins, and RNA helps assemble the proteins. Fact 2: RNA RNA, or ribonucleic acid, is a constituent of all living cells and many viruses. Given the two facts above, what helps assemble proteins?

OPTIONS:
- h2o
- Veins and arteries.
- the body's largest organ
- calcium
- ribonucleic acid
- DNA
- oxidation reaction
- Chemical energy

Answer: ribonucleic acid

Fact 1: Hormones control many cell activities, so they are very important for homeostasis. Fact 2: Hormones travel in the bloodstream to cells that are called target cells a. Given the two facts above, what allows molecules to travel to control many cell activities?

OPTIONS:
- skin
- heat energy
- animal transport
- bloodstream
- Chemical energy
- nasal passage
- movement
- fat tissue

Answer: bloodstream

Fact 1: Loud noises can cause animals to startle. Fact 2: When startled or hurt, hamsters can deliver quite a bite. Given the two facts above, loud noises can cause hamsters to deliver quite a what?

OPTIONS:
- deadly
- package
- lecture
- delivery
- rabies
- bite
- Injury
- food

Answer: bite

Fact 1: All life relies on a relatively narrow range of pH, or acidity. Fact 2: All organisms have life cycles. Given the two facts above, what relies on a relatively narrow range of acidity?

OPTIONS:
- weathering
- mammals
- density
- Most plants
- organisms
- animals
- barnacles
- volume

Answer:
organisms