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Terms in this set (28)
organisms that make their own food from inorganic molecules and energy (mostly from the sun); includes plants and all other autotrophs; they are the bottom of the food web/chain
organisms that cannot make their own food, so they eat their food; include all animals, fungi, many protists and bacteria (hetertrophs, decomposers, herbivores, carnivores, omnivores, scavengers)
bacteria and fungi that break down the bodies of organisms and other organic wastes; they return organic matter back into into an ecosystem (complete the cycle of matter)
layer in the structure of feeding relationships in an ecosystem; such as primary producers, primary consumers, secondary consumers, tertiary consumers, etc
primary consumers that only eat plants (producers); such as deer, rabbits, cows, moose, etc
secondary consumers that eat only meat (other consumers); includes octopus, wolves, coyotes, lions, tigers
eat both plant (producers) and meat (consumers); act as primary, secondary, or tertiary consumers; such as bear, people, etc.
usually don't hunt living prey, but eat the bodies of dead/dying organisms; secondary or tertiary consumers; such as crows, vulture, etc
makes its own food; primary producers; they are the sole point of entry for new energy into the ecosystem; base of the food web/chain
must eat their food (can't make it themselves); consumers; eat producers and/or other consumers
a series of different organisms that transfer food between the Trophic levels of an ecosystem; all food chains begin with producers (but real ecosystems aren't this simple - they're webs)
network of food chains representing the feeding relationships among organisms
increasing concentration of a pollutant in organisms at higher Trophic levels in a food web; Many pollutants can be concentrated in this way, especially in meats
primary producers are Krill (microscopic organisms that baleen whales eat)
All of life depends on this type of organisms
cows, buffalo, deer are examples of...
Examples include plants, photosynthetic protists and bacteria
Examples include snakes, lions, hawks, spiders, octopus, coyote, wolf
Examples include people, bears, and chimpanzees
Examples include most fungi and bacteria
What makes an ecosystem stable?
Food chain species would all die, while food web would still survive.
What happens if one species goes extinct in a food chain versus a food web?
Example of biological magnification
DDT was used as a pesticide - was spread on crops that was eaten by insects who were eaten by birds who were eaten by eagles; DDT made eagle almost go extinct
total amount of organic matter present in a trophic level; it is potential food for the next trophic level
is a diagram that shows the relative amounts of energy in different trophic levels in an ecosystem, where the bottom levels have more energy then those above them (only about 10% go the energy is passed from one level to the next)
movement of water into the atmosphere as it changes from a liquid to a gas
evaporation of water from the leaves of plants
plants that have colonies of nitrogen fixing bacteria on their roots (such as peanuts, beans, and clover)
THIS SET IS OFTEN IN FOLDERS WITH...
ESS Ch 18
Periodic Table of Elements
Mitosis and Meiosis
AP Biology Mitosis/Meiosis/Genetics
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