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35 Cards in this Set
- Front
- Back
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A(n) ___________ is the organism that benefits in a relationship when another organism is harmed.
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parasite
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___________ is a series of predictable changes that occur in an ecosystem over time.
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succesion
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___________ is a close, long-term relationship between organisms that benefits at least one of the organisms.
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symbiosis
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The struggle among organisms to survive in a habitat with limited resources is ___________ .
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competition
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A(n) ___________ is an organism that gets energy by breaking down the remains of dead organisms.
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decomposer
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The organism that is harmed in a relationship when another organism benefits is the ___________ .
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host
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A(n) ____________ shows how energy moves through an ecosystem.
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energy pyramid
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How do ecosystems change?
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Natural Changes, Slow Changes, and Human Impacts
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Describe how succession works if their is a forest fire?Which type of trees first appear? What happens next?
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The changes from succession will still work but it will just be faster. The first trees that grow back are fireweed trees. The people or animals living in the ecosystem will rebuild their houses to live.
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Describe 3 adaptations that occur in a species? Why are these adaptations important?
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The mandrill has 3 different adaptations. Sharp teeth to eat with. Pouches in his mouth to store food. Powerful hands to dig up seeds to eat.
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How do decomposers obtain energy?
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eating animals
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About what percent of the energy at one level of a food chain is transferred to the next higher level?
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10%
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Which best describes why competition occurs among animals in an ecosystem if resources are scarce?
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Animals of similar species live in the same area.
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What is nitrogen used for?
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protein
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What has carbon in it that helps us breath?
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the atmosphere
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Fixed Nitrogen
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combined with other elements
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Free Nitrogen
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not combined with other elements
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in the relationship between a fox and a rabbit, the rabbit is the _____________ .
prey or predator |
prey
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in the relationship between horses and tape worms, is an example of ________________.
commensalism or paracitism |
paracitism
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mites live at the base of your eyelashes in a type of symbiosis known as ____________ .
mutualism or commensalism |
commensalism
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a person who has athletes foot is the ______________ in a relationship?
parasite or host |
host
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the large teeth of the mandrill are an example of a _____________ adaptation
behavioral or structural |
structural
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a spider building its web is an ________________ behavior
inherited or learned |
inherited
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the robin building its nest is an example of a _____________ adaptation
behavioral or structural |
behavioral
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how are food webs and food chains similar and different?
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they are similar because a food web is many different food chains
they are different because food webs show more eating paths in an ecosystem then a food chain |
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Describe what happens during hibernation?
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During hibernation their body processes slow down. Their temperature may become lower, and their heartbeat and breathing slow down. Hibernation protects animals from the cold months in their environment.
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What do adaptations provide for an organism?
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Adaptations enable organisms to get energy and to find mates and reproduce. They also protect organisms from their environments.
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What are 3 adaptations?
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behaviors, structures, and body processes.
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Where do producers get energy?
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Sunlight
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Where do consumers get energy?
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From animals or plants that are producers
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What occurs when resources are scarce?
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there is competition among the species
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What element exists in both the Nitrogen cycle and the Carbon cycle?
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Decomposition
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What are the 3 steps of the carbon cycle?
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Decomposition, Photosynthesis and Respiration
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what are the 3 steps of the water cycle?
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Evaporation, condensation and precipitation
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How are transportation and evaporation alike?
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they are alike because the water from the plants and ocean sea or lake water gets turned into water vapor for the next step called condensation
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