input: OPTIONS:
- Veins and arteries.
- lack of backbone
- bruised brain stem
- critical organs
- closed circulatory system
- incomplete circulatory system
- characteristics
- sensory neurons Now, answer this question: Fact 1: Chordates have a complete digestive system and a closed circulatory system. Fact 2: Vertebrates are members of of a larger group, the chordates . Given the two facts above, vertebrates have a complete digestive system and a what?
A:
output: closed circulatory system

input: OPTIONS:
- ova and spermatozoa
- rapid expansion
- Plant reproduction
- Most plants
- h2o
- less cells
- checks and balances
- members of their own species Now, answer this question: Fact 1: Meiosis is the type of cell division that produces gametes. Fact 2: Examples of gametes are ova and spermatozoa. Given the two facts above, what does meiosis produce?
A:
output: ova and spermatozoa

input: OPTIONS:
- hydrate their cells
- exercise
- By coral exoskeletons
- planting trees
- trimming trees
- planting grass
- buying flowers
- support Now, answer this question: Fact 1: Planting trees has a positive impact on an ecosystem. Fact 2: An ecosystem includes the organisms and their habitat. Given the two facts above, doing what has a positive impact on organisms and their habitat?
A:
output:
planting trees