Q: Fact 1: Mutation creates new genetic variation in a gene pool. Fact 2: Most mutations are beneficial to the organism. Given the two facts above, most what in a gene pool are beneficial to organisms?

OPTIONS:
- resistance activities
- genetic ties
- genetic distractions
- Plant reproduction
- fur and fat
- resistance
- genetic variations
- genetic similarities

A: genetic variations

Q: Fact 1: Mollusks are a major food source for other organisms, including humans. Fact 2: Interestingly, a squid is also a mollusk. Given the two facts above, who are squids a food source for?

OPTIONS:
- flies
- animals
- humans
- trees
- people
- food
- insects
- tortoises

A: humans

Q: Fact 1: Hydropower requires damming a river. Fact 2: Hoover Dam, the first dam on the Colorado River below Grand Canyon, was built between 1931 and 1935. Given the two facts above, which of these produces hydropower?

OPTIONS:
- deuterostomes
- Wind Turbines
- power stations
- Suez Canal
- trout
- Old Faithful Geyser
- Hoover Dam
- stations

A: Hoover Dam

Q: Fact 1: Nephrons are the structural and functional units of the kidneys. Fact 2: Damage to the nephrons can be caused by conditions such as diabetes and high blood pressure . Given the two facts above, damage to the structural units of the kidneys can be caused by ..?

OPTIONS:
- harmful substances
- an area swollen with pus
- a lot of human deaths
- Pesticides
- Heavy rains
- Leptospirosis
- Veins and arteries.
- high blood pressure

A:
high blood pressure