Ecosystems And Biomes Part 1: Question Preview (ID: 24258)

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Ecologists study feeding patterns to learn how energy flows within a(n)
a) niche b) ecosystem c) speices d) population
Organisms that use the sun's energy to turn water and carbon dioxide into food molecules are called
a) consumers b) pioneer species c) decomposers d) producers
A diagram that shows the amount of energy that moves from one feeding level to another in an ecosystem is called a(n)
a) energy pyramid b) food chain c) food web d) succession
The process of evaporation, condensation, and precipitation make up the
a) water cycle b) food web c) carbon and oxygen cycles d) nitrogen cycle
'Free' nitrogen gas is changed into a usable form of nitrogen in the process called
a) primary succession b) condensation c) nitrogen fixation d) legumes
Wind, water, and living things are three means of
a) dispersal b) succession c) decomposition d) continental drift
The type of biome that exists in an area is determined by its
a) exotic species b) climate conditions c) food webs d) weather conditions
The biome which receives less than 25 centimeters of precipitation a year is the
a) boreal forest b) rain forest c) savanna(h) d) desert
An extremely cold, dry land biome is the
a) decisuous forest b) tundra c) boreal forest d) neritic zone
Succession is the series of predictable changes that occur over time in a
a) food chain b) species c) population d) community
A(n) _____ is a carnivore that feeds on the bodies of dead organisms.
a) decomposer b) scavenger c) recycler d) dispersaler
Plants, algae, and some microorganisms make food molecules in the process of
a) cytokensis b) cytosynthesis c) respiration d) photosynthesis
The very slow motion of huge blocs of Earth's crust is called
a) continental drift b) plate drift c) continental tectonics d) dispersal
Physical barriers. competition, and climate conditions can limit the _____ of a species
a) photosynthesis b) dispersal c) continental drift d) scavenger
A(n) ____ is a group of ecosystems with similar climates and organisms.
a) biome b) community c) population d) habitat
________ break down wastes and dead organisms and return raw materials to the environment.
a) scavengers b) producers c) decomposers d) consumers
____ is not recycled in ecosystems.
a) Energy b) Matter c) Nitrogen d) Water
Species that have been carried into a new location by people are known as ___________.
a) pioneer species b) plant species c) animal species d) exotic species
The study of where organisms live is called _____.
a) Biogeology b) Biotechnology c) Biogeography d) Biology
Wolves, foxes, and caribou are typical animals in the __________ biome
a) tropical rain forest b) tundra c) deciduous forest d) savannah
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