Fact 1: Most modern gymnosperms are trees with woody trunks. Fact 2: Woody plants such as trees and shrubs have stiff stems or trunks covered in bark. Given the two facts above, most modern gymnosperms are trees covered in what?

OPTIONS:
- bark
- sand
- damage
- bees
- leaves
- growth
- nektar
- vines

Answer: bark

Problem: OPTIONS:
- motors
- pupils
- play
- humans
- power
- Man
- fuzzy
- motion
Q: Fact 1: Behaviors can be learned through play. Fact 2: Cognitive behavior is the behavior of understanding. Given the two facts above, what is cognitive?
Answer: play

Problem:OPTIONS:
- hydrogen
- root growth
- weathering
- animals
- artificial intelligence
- mutation
- trees
- competition

Fact 1: Mutation creates new genetic variation in a gene pool. Fact 2: Genetic variation is the basis for natural selection. Given the two facts above, what is the basis for natural selection?
****
A: mutation

Fact 1: Chordates have a complete digestive system and a closed circulatory system. Fact 2: Because reptiles are vertebrates, they are chordates. Given the two facts above, what have complete digestive systems?
OPTIONS:
- a fish
- saliva
- mammals
- insects
- protist
- barnacles
- reptiles
- rabbit
reptiles

Fact 1: All chemical reactions require activation energy to get started. Fact 2: Enzymes are catalysts and accordingly, speed up reactions by decreasing the activation energy. Given the two facts above, what can make a chemical reaction easier to get started?
OPTIONS:
- sweating
- ATP
- Carbohydrates
- heat
- a stove
- DNA
- Enzymes
- electron

Answer: Enzymes

input with options: Fact 1: Disease has a negative impact on an organism. Fact 2: Disease causing organisms are called pathogens . Given the two facts above, what have a negative impact on an organism?
OPTIONS:
- influenza
- smallpox
- cancer
- chickenpox
- viruses
- Pollution
- pathogens
- steroids
output:
pathogens