Q: Fact 1: Mutations are essential for evolution to occur. Fact 2: Natural selection is the mechanism of evolution. Given the two facts above, what enables natural selection to occur?

OPTIONS:
- environment
- mutations
- competition
- relocation
- Darwin
- evolutionary development
- root growth
- research

A: mutations

input: OPTIONS:
- energy
- waves
- wind
- cars
- storms
- homes
- Lift
- gases Now, answer this question: Fact 1: The vanes rotating in an electric fan causes air to move. Fact 2: Air is a gas, and air has pressure. Given the two facts above, the vanes rotating in an electric fan cause what to move?
A:
output: gases

Fact 1: HIV infects and destroys helper T cells. Fact 2: Helper T Cells Helper T cells are the brains behind immune response. Given the two facts above, what can HIV infect and destroy part of?

OPTIONS:
- water
- parasitic
- epidermis and dermis
- the immune response
- Veins and arteries.
- Most plants
- the body's largest organ
- Trojan worm

Answer: the immune response

Problem: OPTIONS:
- epidermis and dermis
- In their leaves
- location tissue
- conducting tissue type
- Veins and arteries.
- sedimentary rocks
- root canals
- eye sockets
Q: Fact 1: Secondary meristem is located within and around the vascular tissues. Fact 2: Vascular tissue is a conducting tissue type. Given the two facts above, secondary meristem is located within and around what?
Answer: conducting tissue type

Problem:OPTIONS:
- cigarettes
- humans disturb it
- harmful substances
- sunlight
- deforestation
- erosion of dirt
- rainfall
- moon phases

Fact 1: Erosion of soil has a negative impact on the environment. Fact 2: Dirt is really misplaced soil. Given the two facts above, what usually has a negative impact on the environment?
****
A: erosion of dirt

Problem:OPTIONS:
- pressure regulated
- to move people
- the body's largest organ
- solid, liquid, gas
- matter vibrating
- layers of fat
- principals of aerodynamics
- it keeps an organism warm

Fact 1: Arteries generally carry oxygen-rich blood. Fact 2: Arteries regulate blood pressure. Given the two facts above, what are arteries?
****
A:
pressure regulated