5 Written questions
5 Matching questions
- Hydrologic (water) cycles
- Trophic level
- a An animal or plant with organs that function together to maintain life; a living thing; anything that resembles a living thing in structure or function
- b All organisms that are the same number of energy transfers away from the original source of energy (for example, sunlight) that enters an ecosystem. For example, all producers belong to the first trophic level, and all herbivores belong to the second trophic level in a food chain or a food web.
- c Organisms that obtain energy by eating only plants
- d Continuous movement of water on, above and below the surface of the Earth.
- e All the organisms in a given area as well as the abiotic factors with which they interact; a community and its physical environment
5 Multiple choice questions
- The pathways by which chemicals circulate through ecosystems that involve both living (biotic) and nonliving (geological) components.
- A measure of the total dry mass of organisms within a particular region
- The study of how living things interact with each other and their environment
- The lowest layer of the atmosphere, in which temperature drops at a constant rate as altitude increases; the part of the atmosphere where weather conditions exist
- A catabolic process that makes a limited amount of ATP from glucose without an electron transport chain and that produces a characteristic end product, such as ethyl alcohol or lactic acid.
5 True/False questions
Gross Primary Productivity (GPP) → Rate at which all the plants in an ecosystem produce net useful chemical energy; equal to the difference between the rate at which the plants in an ecosystem produce useful chemical energy (gross primary productivity) and the rate at which they use some of that energy through cellular respiration. Compare gross primary productivity.
Hydrosphere → The earth's liquid water (oceans, lakes, other bodies of surface water, and underground water), frozen water (polar ice caps, floating ice caps, and ice in soil, known as permafrost), and water vapor in the atmosphere. See also hydrologic cycle.
Sulfur cycle → Cyclic movement of sulfur in different chemical forms from the environment to organisms and then back to the environment.
Omnivores → A consumer that eats both producers and other consumers
Anaerobic 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.