Flashcard Set Preview
Side ASide B
AMONG ALL OF THE FOOD CHAINS, THE ORGANISMS AT THE HIGHEST TROPHIC LEVEL ARE...A-the crabeater sealB-the killer whalesC- the krillD-the algea
B-the killer whales
THE DIAGRAM, WHICH SHOWS HOW ENERGY MOVES THROUGH AN ECOSYSTEM, IS CALLED A...A-habitat netB-food chainC-food webD-trophic level
THE LEOPARD SEALS ARE...A-omnivoresB-producersC-carnivoresD-herbivores
THE PHOTOSYNTHETIC ALGEA AREA-decomposersB-producersC-parasitesD-consumers
A GROUP OF ORGANISMS OF DIFFERENT SPECIES LIVING TOGETHER IN A PARTICULAR PLACE IS CALLED A A-biomeB-communityC-habitatD-population
IN AN ECOLOGICAL ENERGY PYRAMID, ANIMALS THAT FEED ON PLANTS ARE LEAST IN THE...A-first trophic levelB-second trophic levelsC-third trophic levelD-fourth trophic level
B-second trophic level
IN A FOOD WEB, WHICH TYPE OF ORGANISM RECEIVES ENERGY FROM EVERY OTHER TYPE...A-carnivoreB-producerC-decomposerD-all of the above
WHEN AN ORGANISM DIES, THE NITROGEN IN ITS BODY...A-is released by the action of decomposersB-can never be reused by other living thingsC-is immediatley released into the atmosphereD-all...
A-is released by the action of decomposers
HOW MUCH ENERGY IS AVAILABLE TO THE ORGANISMS IN LEVEL 3...A-all of the energy in level 1 minus the energy in level 2B-all of the energy in level 1 plus the energy in level2C-about...
C- about 10% of the energy in level2
AT EACH TROPHIC LEVEL, THE ENERGY STORED IN THE ORGANISMS IN THAT LEVEL IS...A-about 10% of the energy in the level below itB-about 50% of the energy in the level below itC- about 10%...
A-about 10% of the energy in the level below it
THE DIAGRAM REPRESENTS THE DECREASE IN...A-the number of organisms between lower and higher trophic levelsB-available energy between lower and higher trophic levelsC-diversity of organisms...
B-available energy between lower and higher trophic levels
HUMANS AFFECT THE CARBON CYCLE BY...A-burning fossil fuelsB-destroying vegetation that absorbs carbon dioxideC-clearing forestsD-all of the above
D-all of the above
PRECIPITATION AND EVAPORATION ARE IMPORTANT COMPONENTS OF THE...A-carbon cycleB-water cycleC-nitrogen cycleD-all of the above
WATER AND MINERALS NEEDED BY ALL ORGANISMS ON EARTH PASS BACK AND FORTH BETWEEN THE BIOTIC AND ABIOTIC PORTIONS OF THE ENVIROMENT IN A PROCESS CALLEDA-a biochemical pathwayB-a throphic...
C-a biogeochemical cycle
THE ORGANIC MATERIAL IN AN ECOSYSTEM IS CALLED...A-biomassB-trophic levelC-productivityD-energy
WHICH OF THE FOLLOWING IS NOT A WAY THAT ORGANISMS DEAL WITH UNFAVORABLE ENVIROMENTAL CONDITIONS...A-interdependenceB-dormancyC-body temperature regulationD-migration
THE NUMBER OF TROPHIC LEVELS IN AN ECOLOGICAL ENERGY PYRAMID...A-never exceeds threeB-is limitlessC-is limited by the amount of energy that is lost at each trophic levelD-is impossible...
C-is limited by the amount of energy that is lost at each trophic level
SPECIES WITH NARROW NICHES...A-are called specialistsB-use a wide variety of resourcesC-can tolerate a range of enviromental conditionsD-all of the above
A-are called specialists
THE PRIMARY PRODUCERS IN A GRASSLAND ECOSYSTEM WOULD MOST LIKELY BE...A-algaeB-insectsC-grassesD-bacteria
COAL, OIL, AND NATURAL GAS...A-are formed from decayed plantsB-are fossil fuelsC-release carbon dioxide when they are burnedD-all of the above
D-all of the above
ORGANISMS THAT MANUFACTURE ORGANIC NUTRIENTS FOR AN ECOSYSTEM ARE CALLED...A-omnivoresB-consumersC-producersD-predators
THE STUDY OF THE INTERACTION OF LIVING ORGANISMS WITH EACH OTHER AND WITH THEIR PHYSICAL ENVIROMENT IS CALLED...A-healthB-economyC-geologyD-ecology
IN GOING FROM ONE TROPHIC LEVEL TO THE NEXT HIGHER LEVEL...A-the amount of usable energy decreasesB-the number of organisms increasesC-the amount of usable energy increasesD-none...
A-the amount of usable energy decreases
THE SPECIFIC PHYSICAL LOCATION IN WHICH A GIVEN SPECIES LIVES IS CALLED ITS...A-communityB-climateC-abiotic factorD-habitat
AN ECOSYSTEM CONSISTS OF...A-a community of organismsB-energyC-the soil, water and weatherD-all of the above
D-all of the above
ECOLOGICAL MODELS ARE USEFUL FOR ALL OF THE FOLLOWING PURPOSES EXCEPT...A-evaluating proposed solutions to enviromental problemsB-making predictions about future ecological changesC-testing...
D-accounting for all the variables that exist in a real enviroment
ALL ORGANISMS IN AN ECOSYSTEM ARE LINKED TOGETHER IN ANETWORK OF INTERACTIONS. THIS QUALITY IS CALLED...A-interdependenceB-isolationC-communicationD-geochemical processes
THE AREAS OF AN ORGANISM'S TOLERANCE CURVE THAT LIE AT THE EXTREME HIGH OR LOW FOR AN ENVIROMENTAL VARIABLE REPRESNT THE...A-range of the enviromental variable preferred by the organismB-zones...
C-zones of poorest performance by the organism
WHICH OF THE FOLLOWING IS COMMON TO THE CARBON CYCLE, THE NITROGEN CYCLE, AND THE WATER CYCLE...A-the largest reserves of the substance are always in organismsB-the substance...
D-the substance is required by all living things and is involved in many processes that occur in living things.
WHICH OF THE FOLLOWING IS NOT PART OF THE NITROGEN CYCLE...A-nitrogen fixationB-conversion of nitrogen from decaying organisms into ammoniaC-conversion of atmospheric nitrogen into...
WHICH OF THE FOLLOWING WOULD NOT BE INCLUDED IN A DESCRIPTION OF AN ORGANISMS NICHE...A-its trophic levelB-the humidity and temperature it prefersC-when it reproducesD-its number of...
D-its number of chromosomes