Convection, you are heating the air around your hands.
The normally treated group is called the control. Scientists use control to lessen the effects of variables. The accuracy of the results becomes higher. Control groups can be positive or negative depending on the expectation of a phenomenon that would occur in it.
Mucous membrane, membrane lining body cavities and canals that lead to the outside, chiefly the respiratory, digestive, and urogenital tracts. Mucous membranes line many tracts and structures of the body, including the mouth, nose, eyelids, trachea (windpipe) and lungs, stomach and intestines, and the ureters, urethra, and urinary bladder.
It doesn’t have a effect on aquatic insects or fish. But it can create conditions that make aquatic insects/fish difficult for them to survive.
Eukaryotic.
In prokaryotic cells, the dna is inside the cytoplasm