5 Written questions
5 Matching questions
- Greenhouse effect
- Gross Primary Productivity (GPP)
- Anaerobic respiration
- a Anticipated increase in Earth's temperature, caused by carbon dioxide (emitted by burning fossil fuels) trapping some of the radiation emitted by the surface.
- b The use of inorganic molecules other than oxygen to accept electrons at the "downhill" end of electron transport chains.
- c Organisms that obtain energy by eating only plants
- d Nonliving; specifically, the nonliving components of an ecosystem, such as temperature, humidity, the mineral content of the soil, etc.
- e The rate at which an ecosystem's producers capture and store a given amount of chemical energy as biomass in a given length of time. Compare net primary productivity.
5 Multiple choice questions
- Cyclic movement of carbon in different chemical forms from the environment to organisms and then back to the environment.
- A measure of the total dry mass of organisms within a particular region
- All the organisms in a given area as well as the abiotic factors with which they interact; a community and its physical environment
- Diagram representing the flow of energy through each trophic level in a food chain or food web. With each energy transfer, only a small part (typically 10%) of the usable energy entering one trophic level is transferred to the organisms at the next trophic level. Compare pyramid of biomass, pyramid of numbers.
- A mixture of gases that surround the Earth
5 True/False questions
Organisms → All the organisms that inhabit a particular area; an assemblage of populations of different species living close enough together for potential interaction.
Net Primary Productivity (NPP) → The rate at which an ecosystem's producers capture and store a given amount of chemical energy as biomass in a given length of time. Compare net primary productivity.
Autotrophs → Organisms that use energy from sunlight or inorganic substances to make organic compounds
Biosphere → The entire portion of Earth inhabited by life; the sum of all the planet's ecosystems.
Aerobic respiration → The process in which pyruvic acid is broken down and NADH is used to make a large amount of ATP; the part of respiration that is carried out in the presence of oxygen.