Flash Cards - Semester 2 Final Exam Review

The cells produced by meiosis are identified as:

• Haploid

• Diploid

• Polyploid

• Triploid

Explain the greenhouse effect.

• The trapping of heat in the Earth's atmosphere by greenhouse gases.

• The cooling of the Earth's surface by reflecting sunlight.

• The increase in plant growth due to more sunlight.

• The reduction of atmospheric pressure by greenhouse gases.

What shape is used to represent males in a pedigree?

• Circle

• Square

• Triangle

• Diamond

What happens to competition for resources if there are fewer organisms present in an ecosystem?

• Competition increases

• Competition decreases

• Competition remains the same

• Competition becomes irrelevant

Define the term "gene."

• A segment of DNA that codes for a protein

• A type of cell

• A molecule that stores energy

• A type of sugar

What is the maximum number of organisms an ecosystem can support referred to as?

• Carrying capacity

• Population limit

• Ecosystem balance

• Resource availability

What is the difference between a producer and a consumer?

• Producers create energy; consumers use energy

• Producers eat other organisms; consumers make their own food

• Producers are always animals; consumers are always plants

• Producers and consumers are the same

Define biodiversity. How does biodiversity affect an ecosystem? How does biodiversity relate to ecosystem stability?

• Biodiversity is the variety of species; it decreases stability

• Biodiversity is the number of organisms; it has no effect on stability

• Biodiversity is the variety of species; it increases stability

• Biodiversity is the genetic variation; it decreases stability

What greenhouse gas is produced by the combustion of coal?

• Carbon dioxide

• Oxygen

• Nitrogen

• Helium

How are CFCs contributing to ozone depletion?

• By breaking down ozone molecules in the atmosphere.

• By increasing the production of ozone.

• By reducing the amount of sunlight reaching the Earth.

• By enhancing the greenhouse effect.