Apopulation of frogs in a pond began with 67 individuals. over one year, the population changed to 53. which are two possible reasons for the change within the frog population? emigration or increase in death rate emigration or increase in birth rate immigration or decrease in death rate immigration or increase in birth rate
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Biology, 21.06.2019 13:30
Which of the following elements does soil need in the largest quantities to sustain plant life? a. copper b. iron c. nitrogen d. zinc
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Biology, 21.06.2019 16:30
Because of its structure the cell membrane is known as a phospholipid ? a.bilayer b.molecule c.fluid d.barrier
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Biology, 21.06.2019 16:30
Which of these is not a function of some membrane proteins ? a.allowing polar molecules to enter the cell b.recognizing other types of cells c.receiving messeges from other cells b.carrying messages to oher cells
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Biology, 21.06.2019 23:00
Adoctor is trying to diagnose a patient with dry skin. which of the following resources would be the most ? a magazine ad about soft skin a growth chart online articles about dry skin medical books
Answers: 2
Apopulation of frogs in a pond began with 67 individuals. over one year, the population changed to 5...
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