Answer:
A. DNA is found in the nucleus of a cell
C. Organisms store and transmit genetic information
E. Cells contain protein molecules.
The emulsion test<span> is a method to determine the presence of lipids using wet chemistry. The procedure is for the </span>sample<span> to be suspended in ethanol, allowing lipids present to dissolve (lipids are soluble in alcohols). The liquid (alcohol with dissolved fat) is then decanted into water.</span>
Heyo. c:
The only way for gases to diffuse in and out of the leaf is through small openings on the underside of the leaf, the stomata. These stomata can open and close according to the plant's needs. The tissues of the leaf inbetween the epidermal cells, into which gases diffuse from the stomata, are called mesophyll.
<span>B)Double-blind studies are ways to ensure that only the researcher can figure out who is getting the effective drug. This is to help and maintain the objectivity of the study especially because since it concerns humans as test subjects. Moreover, it is also to avoid biases and errors which can be elicited by either the researcher himself or the participants. </span>
