7th Grade Life Science Interim review (1st Semester)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the ultimate source of all energy on earth? | The sun
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| What is matter? | Anything that has mass and takes up space
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| Compare and contrast biotic and abiotic | biotic is the living parts of the ecosystem and abiotic is the non-living
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| What are the nutrient cycles we studied? | Water, carbon/oxygen, nitrogen, phosphorus
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| Complete the sequence of environmental organization from simple to most complex: | individual, population, community, ecosystem/biomes, and biosphere
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| What are autotrophs? | Producers that make their own energy, mostly from the sun
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| What is photosynthesis? | The biochemical process that takes smaller inorganic molecules and creates large organic molecules for energy storage
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| What are heterotrophs? | Organisms that must get their food by consuming other organisms
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| What are herbivores? | Organisms that eat only plants
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| What are carnivores? | Organisms that eat only other heterotrophs
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| What are omnivores? | Organisms that eat both plants and animals
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| What are scavengers? | Scavengers that eat dead matter
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| Why are decomposers important? | They break down organic molecules, making nutrients re-available
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| What is a food chain and what does the arrow tell you? | A sequence of who eats who; the arrow points towards higher order consumer
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| What is a food web and what are the levels of consumers? | A complex combination of food chains showing multiple consumers; first level who are herbivores, secondary level are carnivores and omnivores, tertiary consumers who are tope carnivores; The further from the producer the higher the level of consumer
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| What is an energy pyramid? | A diagram that shows the amount of energy in each level of the ecosystem
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| What is a niche? | The role an organism plays in the ecosystem
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| What is the habitat? | The place where the organism lives/works in the ecosystem
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| What are adaptations? | Gradual changes that organisms have made to survive in their ecosystem
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| What is predation? | What do we call the two organisms? the predator consumes the prey
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| What are the three types of symbiotic relationships? Define each | Mutualism where both benefit,
commensalism where one benefits and the other is not harmed,
parasitic where the parasite harms the host (but doesn’t kill it)
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Mrs. Corey
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