wh 7th grade science notes for mrs. frerichs – Flashcards
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Commensalism
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A type of symbiosis between two species in which one species benefits and the other species is neither helped or harmed.
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bio
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life
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ology
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study of
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marine
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ocean
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ist
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person
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herpe
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reptile
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bota
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plants
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ocean
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ocean
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graphy
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to chart
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ornith
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birds
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ichty
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fish
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re
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again
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astro
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space
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scientist use
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method
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scientific methods
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the way in which scientist follow steps to answer questions and solve problems
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hypothesis
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is a possible explanation or answer to a question
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living things have
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cells
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cell
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the basic unit of life
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unicellular
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means one cell
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multicellular
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means many cells
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living things sense and respond to _____
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stimuli
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stimuli
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a change that affects the activty of an organism
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homeostasis
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to mantain a stable internal condition
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all living things ______
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reproduce
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asexual reproduction
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you repduce with one parent
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sexual reproduction
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2 parent off spring
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all living thing have
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dna
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dna stands for
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deoxyribonuleic replaic acid
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heredity
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passing of trates from one geration to the next
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metabolism
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the sum of all the chemical reactions in your body
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adaptation
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to make organisms suitable to a way of life
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the organism needs _______, ________, _______, and ________
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food water air shelter
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cells are made up of approxitmately _____% water
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70
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you cAn go ___ days without water
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3
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most chemical reactions require _____
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water
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you can go ______ weeks without food
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3
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producers
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organisms that makes its own food
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hetero
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different
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______ is another name for producers
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autotroph
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consumers
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they depend on other organisms for food
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auto
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self
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troph
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feed
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______ is another name for consumers
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heterotroph
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de
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down
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decomposers
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get food by breaking down dead organisms or animal waste
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molecule
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two or more atoms put together
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compound
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two or more different molecules put together
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organic
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living or once living
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inorganic
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never living
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macromolecule
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very large molecules
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there are ___ different amino acids
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20
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enzyms
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speed up chmemical rections
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_____ makes animals crunchy
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chitin
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herbivores
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eat plants
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carnivores
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eat meat
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omnivores
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eat plants and animals
