Q: Fact 1: Chordates have a complete digestive system and a closed circulatory system. Fact 2: Chordates Chordates Chordates include fish, amphibians, reptiles, birds, and mammals. Given the two facts above, what kind of circulatory system do fish have? | OPTIONS:
- open
- solid
- closed
- three
- stagnant
- kinetic
- complex
- gills
A: closed

Q: Fact 1: Darkness has a negative impact on photosynthesis. Fact 2: Carbohydrates in plants are formed by photosynthesis. Given the two facts above, what is produced less depending on the amount of darkness a plant receives? | OPTIONS:
- Electrical energy
- water vapor
- Echinoids
- organic molecules
- activation energy
- carbohydrates
- Solar energy
- prolactin release
A: carbohydrates

Q: Fact 1: Telephones are used for communication by two people by transmitting sound. Fact 2: Sound waves are longitudinal waves. Given the two facts above, what are used for communication by two people by transmitting waves? | OPTIONS:
- satellites
- A Greek letter
- Morse code
- mitosis
- telephones
- energy
- electricity
- photosynthesis
A: telephones

Q: Fact 1: Migrants typically travel long distances. Fact 2: Insectivorous birds are the largest group of migrants. Given the two facts above, insectivorous birds typically do what? | OPTIONS:
- fly into the sun
- travel small amounts
- travel long distances
- spread flower seeds
- competing for resources
- eat large animals
- eat plants or other animal
- produce offspring
A: travel long distances