Answer:
Cell membrane surround cells, but cell wall is an extra covering outside plant cells, made up of cellulose
High power if your using a light microscope. Hope this helps.
There are two main types of research, which could be classified as manipulation and observation. Both types are fundamental in research.
<h3>Empirical research and evolution</h3>
Evolution is the subdiscipline in biology that studies how organisms change to adapt to challenging environmental conditions.
Empirical research refers to any scientific investigation in which conclusions are drawn from empirical evidence.
This type of research (empirical research) is based on observation of the natural world and experimental procedures.
Learn more about empirical research here:
brainly.com/question/6862874
Some molecules are too big they cannot diffuse through the membrane, for example starch (glucose) molecules.
