<u>Density</u> – The amount of matter in a given space. In scientific terms, density is the amount of mass in a unit of volume.
or
The amount of matter in a given amount of space is known as the <u>Density.</u>
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Sensing, secretion, protection, transcellular transport, and selective absorbtion
Answer:
Ribosomes
Explanation:
Rough endoplasmic reticulum, choloroplast and nucleus all are important organelles and are membrane bound except for ribosome
