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science unit 5 lesson 1 food chain 5th grade Ecosystems
Terms in this set (35)
how energy is transferred from one organism to another; path that energy and nutrients follow in an ecosystem; model the feeding relationships between organisms in an ecosystem
what does the energy in a food chain start with?
the sun; it is the energy source for almost all organisms on Earth
any animal that eats plants or other animals
when a producer makes its food
organisma that make own food; they use the sun's energy to make sugar and oxygen; at the base of the food chain
what do producers build sugar molecules out of?
carbon dioxide and water
land food chain
producer(berries)>primary consumer(bird)>secondary consumer(leopard)
break down dead or decaying plant and animal material
(eat meat, other animals)
includes all living and non living things in an environment; can be local or widespread
a consumer that eats the remains of dead animals that it did not hunt or kill
a network of food chains that have some links in common;several food chains put together
living thing that hunts and kills other living things for food
organisms that are eaten by predators
why are predators important in food webs and food chains?
they limit size of prey population and when the number of prey animals is low. producers and other resources in an ecosystem are less likely to run out
non living things
includes all members of a single species in an area at a given time
the many different populations make up a community; all living things in an ecosystem
a diagram that shows the amount if energy available at each level of an ecosystem
how much of sun's energy is used in photosynthesis?
only about 10% of sun's energy gets turned into food energy by a producer
when a producer is eaten how much of the food energy it contains gets turned into consumer tissue?
a sudden explosive growyh of single celled algae in coastal areas
a fight for limited resources
any resources that restrict the growth of populations
the greatest nmber of individuals within a population that an ecosystem can support
the physical place where an organism lives and hunts for food
the special role that an organism plays in a community
the reliance of organisms on other organisms for their survival
a relationship between two or more types of organisms that lasts over time
a symbiotic relationship that benefits both organisms
a symbiotic relationship that benefits one organism without harming the other
a symbiotic relationship that benefits one organism but harms the other
a disease caused byamoeba
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