Food webs with fewer species are more sensitive to the loss of species and ecosystem disturbances
1) transcription.-
2)Transcribed.-
3)Cells nucleus.-
4)Cytoplasm.-
5)RNA polymerase.-
6.-
7)Introns.-
8)Exans.-
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Cell membranes serve as barriers and gatekeepers. They are semi-permeable, which means that some molecules can diffuse across the lipid bilayer but others cannot.
Answer:
The correct answer is D) integral membrane proteins.
Explanation:
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Ionic channels consist of oligomeric transmembrane integral proteins (formed by the assembly of several subunits). Said proteins act as gate channels that allow the passage of certain ions eg. calcium, sodium, potassium, etc.
Answer:
the world will end on few hours............
