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The missing words are circle - shaped chromosome.
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<em>Answer:</em>
<em>van der Waals forces</em>
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<em>Method:</em>
Online, and other sources to make sure the answer is correct.
Cells must move materials through the {membrane} and throughout the {cytoplasm} to maintain {homeostasis} Movement of substances is regulated because membranes are {semi} permeable. Membranes are {phospholipid} bilayers that contain embedded {proteins} The cells external environment and cytoplasm are aqueous, meaning that solutes such as {salt}are dissolved in a solvent called {water} Water may travel slowly through the membrane by {osmosis} or quickly through protein channels called {aquaporins}
Answer: allele/ gene / homologous
Explanation: