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Ch 3 study guide

QuestionAnswer
Levels of organization in order from largest to smallest Biosphere,Biome,Ecosystem,Community,Population,Individual.
What 3 methods do Ecologists use? They Observe,Experiments,and Model.
What type of organism would be at the beginning of the food chain? Producer/Autotroph
What organism ussess energy to make its own food Plants, producers
What is the total amount of living tissue within a given trophic level Biomes
What animals eat both producers & consumers carnivores
A snake that eats a frog that has eaten an insect that fed on a plant is a consumer
what is the process by which bacteria convert nitrogen gas in the air to ammonia Nitrogen fixation
the movements of energy and nutrients through living systems are different because? matter is recycled within and between ecosystems
the branch of biology dealing with interactions among organisms and between organisms and their environment is callled Ecology
what are the combined portions of Earth calling in which all living things exist Biosphere
all the members of a particular species that live in the same area are called Populations
Green plants are what Producers
what is the original source of almost all the energy in most ecosystems Sunlight
an organism that can not make its own food Heterotrophs
organisms that obtain nutrients by breaking down dead and decaying plants and animals are called Decomposers
whats is an organism that feeds only on plants called Herbivores
all interconnected feeding relationships in an ecosystem make up a food Food Web
the repeated movement of water between earths surface and the atmosphere is called Water cycle
organisms need nutrients in order to Live
organisms in the oceans with the smallest total biomass are most likely the Prooducers
water can enter the atmosphere through the processes of evaporation and Transpiration
plant eating animals such as cows are called Herbivores
only about___ percent of the energy in a trophic level is available to organisms at the next level
Created by: johnnyslane
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