Biology, 24.06.2019 22:30 haydjanggg6578
Which two kinds of organs vertebrate animals take in oxygen and get rid of carbon dioxide? a)gill b)lung c)stomach d)heart
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Biology, 21.06.2019 15:30
Which of the following are true about bacteria? select all that apply. bacteria are all around you. bacteria can or harmful. bacteria are multicellular organisms. bacteria can only be found on the human body.
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Biology, 21.06.2019 19:00
Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.
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Biology, 22.06.2019 01:30
Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?
Answers: 1
Which two kinds of organs vertebrate animals take in oxygen and get rid of carbon dioxide? a)gill...
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