Fact 1: Harming an animal species causes that animal 's population to decrease. Fact 2: Species are the different kinds of organisms. Given the two facts above, harming a certain kind of animal will cause the population of that animal to do what?
OPTIONS:
- decrease
- eat more
- increase
- break off
- threatened
- reproduce
- reduce
- kill them

Answer: decrease

Fact 1: Urine is the liquid waste product of the body that is excreted by the urinary system. Fact 2: Liquid waste passes through the blood and the urinary system . Given the two facts above, how does urine leave the body?
OPTIONS:
- metabolic reaction
- through the small intestines
- Transfers energy
- an area swollen with pus
- To another location like underground
- through the urinary system
- through the anus
- through the body

Answer: through the urinary system

Fact 1: Aplant requires water to grow. Fact 2: Water is needed by plants to keep growing. Given the two facts above, what do plants need to develop?
OPTIONS:
- trees
- water
- glass
- seeds
- energy
- growth
- Energy.
- fire

Answer:
water