Fact 1: Gene flow occurs when individuals move into or out of a population. Fact 2: Gene flow tends to decrease differentiation. Given the two facts above, what tends to occur when individuals move into or out of a population?

OPTIONS:
- competing for resources
- extinction
- matter is destroyed
- metabolic reaction
- rapid exponential growth
- seed dispersal
- decreased differentiation
- permineralization

Answer: decreased differentiation

Problem: OPTIONS:
- saccharose
- barbiturates
- cigarettes
- sweating
- muscle relaxants
- A Greek letter
- Decibels
- valium
Q: Fact 1: Caffeine is a central nervous system stimulant. Fact 2: Likewise, the caffeine and saccharose stimulate the body's stimulation of serotonin. Given the two facts above, what is a central nervous system stimulant?
Answer: saccharose

Problem:OPTIONS:
- Plants growth
- Change colors
- survive
- taste savory
- taste bland
- taste sweet
- taste salty
- chemical changes

Fact 1: Sugar causes food to taste sweet. Fact 2: Regular sugar is also called sucrose. Given the two facts above, sucrose causes food to what?
****
A: taste sweet

Fact 1: Population density is the average number of individuals per unit of area or volume. Fact 2: Economy is affected by population size and density. Given the two facts above, what is affected by the average number of individuals per unit of area or volume?
OPTIONS:
- goats
- economy
- cows
- animals
- vegetation
- mammals
- bushes
- wind
economy

Fact 1: Evolution occurs by a process called natural selection. Fact 2: Natural selection only selects functionally advantageous systems. Given the two facts above, what is usually chosen in evolution?
OPTIONS:
- common traits
- Plant reproduction
- advantageous systems
- undesirable traits
- Animal survival
- competition
- mysterious sytems
- Earth revolving around the sun

Answer: advantageous systems

input with options: Fact 1: Darkness has a negative impact on photosynthesis. Fact 2: During a solar eclipse , the sky can get quite dark. Given the two facts above, what can have a negative impact on photosynthesis?
OPTIONS:
- disease
- Smoking
- Pollution
- seed dispersal
- solar eclipse
- scattered light
- cell division
- mutation
output:
solar eclipse