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Seventh Grade (Grade 7) Ecology Questions

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Grade 7 Conservation and Biodiversity
Grade 7 Ecology
What is ecology?                             the study of living things                             

What provides the needs for a living organism?          habitat          

What does abiotic mean?             non living             

What does biotic mean?         living         

What are the 3 abiotic factors?                           temperature, soil, water                           

Explain population.                                             all members of a species in one given area                                             

What is species?                                                    a group of organisms that are physically similar                                                   

What is an ecosystem?                                           community (biotic & abiotic factors)                                           

What is a direct observation?                            what you can see or feel                           

What is an indirect observation?                                                 you can see signs, but can't see the organism                                                

Explain natural selection.                                                                                                                                individuals with characteristics best suited for the environment will survive and produce offspring with same characteristics                                                                                                                                

What allows an organism to survive in certain conditions?              adaptations              

What is a niche?                                               an organism's job or role in the environment                                               

What is birth/death rate                                                                 how many animals are born or die within a given amount of time                                                                 

What is immigration?                                   animals coming into a population                                   

What is emigration?                               animals leaving a population                               
Grade 7 Biotic and Abiotic
A biotic factor is
  1. non-living parts of an ecosystem
  2. weather
  3. living organisms in an ecosystem
Grade 7 Communities, Populations, and Ecosystems
Grade 7 Symbiosis
When a tick lives on our husky, the symbiosis can be described as follows:
  1. it is mutualism with the tick and the dog as co-hosts
  2. it is predation with the tick predator and the dog prey
  3. it is parasitism with the dog as parasite and the tick as host
  4. it is parasitism with the dog as host and the tick as parasite
Grade 7 Food Chains and Webs
When a hungry cheetah kills and eats a zebra
  1. this is called competition
  2. this is called predation
  3. this is called dinner time
  4. this is called mutation
Grade 7 Food Chains and Webs
Grade 7 Food Chains and Webs
Grade 7 Biotic and Abiotic
Grade 7 Communities, Populations, and Ecosystems
A niche does not include
  1. when and how an organism reproduces.
  2. what type of food an organism eats.
  3. how an organism obtains its food.
  4. physical conditions it requires to survive.
  5. what the organism smells like.
Grade 7 Food Chains and Webs
Which of the following would be considered a predator?
  1. Earthworm
  2. Red Tail Hawk
  3. Cricket
  4. Mouse
Grade 7 Biogeochemical Cycles
Lightning, legumes and bacteria are a part of which cycle?
  1. water cycle
  2. nitrogen cycle
  3. carbon cycle
  4. phosphorus cycle
Grade 7 Biotic and Abiotic
An abiotic factor
  1. includes non-living parts of an ecosystem
  2. includes living organisms of an ecosystem
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