Problem: OPTIONS:
- nucleus
- reduction
- nothing
- growth
- DNA
- gene flow
- less cells
- pregnancy
Q: Fact 1: Cell division often causes growth. Fact 2: Mitosis is cell division. Given the two facts above, what does mitosis often cause?
Answer: growth

Problem:OPTIONS:
- use greater resources
- one celled organisms
- they are lazy
- conserve energy
- When it's cold
- hard outer covering
- hydration
- more sleep

Fact 1: Hibernation is used for conserving energy by some animals. Fact 2: Bears use the fat as energy over the winter hibernation. Given the two facts above, why do bears hibernate?
****
A: conserve energy

Fact 1: Sinkholes are formed by precipitation. Fact 2: Sinkholes are common in the southwestern portion of the subsection. Given the two facts above, what is common in the southwestern portion of the subsection?
OPTIONS:
- permineralization
- deuterostomes
- barrel-shaped
- cactuses
- swamp vegetation
- peachleaf willow
- precipitation
- gene flow
precipitation

Fact 1: Oxygen is essential for cellular respiration for all aerobic organisms. Fact 2: Cellular respiration is a requirement for life. Given the two facts above, which is a requirement for life?
OPTIONS:
- glucose
- hydration
- sunlight
- scandium
- recovery
- oxygen
- uranium
- radon

Answer: oxygen

Question: Fact 1: Viruses are so small that they can be seen only with an electron microscope. Fact 2: Viruses Viruses are very small, a few nanometers in size. Given the two facts above, objects that are a few nanometers in size can be seen only with:?
OPTIONS:
- an electron microscope
- refraction of light
- matter vibrating
- ultrasound
- The bending of a ray of light
- slight magnification
- flashlights
- lens
Answer: an electron microscope

input: OPTIONS:
- a hemisphere is tilted away from the sun
- object is kicked
- movement of tectonic plates
- flow of electrons
- when the sperm and egg fuse
- Earth revolving around the sun
- Warm air moving into cold air
- seed dispersal Now, answer this question: Fact 1: Fertilization occurs when a sperm and an egg fuse. Fact 2: Fertilization As far as fertilization, timing is critical. Given the two facts above, when is timing critical?
A:
output:
when the sperm and egg fuse