Which kinds of cells are always single-celled? a). eukaryotes b).prokaryotes

What element does susan b. anthony include in this passage to strengthen her argument?

Why are current extinctions of concern to enviromentalists?

Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae