Chemistry, 12.05.2021 19:10 potato3999
Every cell is surrounded by a thin membrane. What is the main function of this cell membrane? A.
to protect the cell from invasion by bacteria and viruses
B.
to allow each cell to form connections with other cells
C.
to limit the size of the cell and keep the shape of the cell the same
D.
to separate the inside of the cell from the outside environment
Answers: 1
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Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains
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The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride
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Chemistry, 22.06.2019 17:00
Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness
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Every cell is surrounded by a thin membrane. What is the main function of this cell membrane? A.
to...
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