The concentration of glucose outside the cell is higher than the concentration of glucose inside the cell, thus there is a concentration gradient. The molecules of glucose move randomly and there is a net movement from outside to the inside, down the concentration gradient.
Answer:
Because when your toe is injured it sends a pulse to your groin that causes your groin to fell pain so your brains neuropathegens dont feel as much pain transmiting through your toe. Hope this helps :)
Movement of lithospheric plates created isolation between populations and with isolation comes different mutations and lineages which is how evolution occurs. (This is called allopatric speciation!).
The sentence which is true or a fact about the virus is the sentence in letter B. Viruses can reproduce only within other cells. <span>Viruses are intracellular obligate parasites they can not replicate or express the genes with out living host. </span>
<span>viruses are acellular so they have to rely on host cellular machinery for reproduction. </span>
<span>viruses doesnot contain any enzymes for reproduction</span>
