Cell is called a structural and functional unit of life of all living organisms capable of independent existence and can perform all functions of life. Both plant and animal cells are eukaryotic, so they contain membrane-bound organelles like the nucleus and mitochondria. However, plant cells and animal cells do not look exactly the same or have all of the same organelles, since they each have different needs. For example, plant cells contain chloroplasts since they need to perform photosynthesis, but animal cells do not.

What would have happened if there had been no difference between mitochondria and plastids in plant cells?

The circulatory system in animals and human beings is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide. Plants do not have a circulatory system like that of animals for transportation of food and minerals within the body then how cells manage intercellular transport?

Cell is called a structural and functional unit of life of all living organisms capable of independent existence and can perform all functions of life.

Is the function performed by an organ the same as the function of its constituent tissues? What is the advantage of organs with the same function working together as a system?

For the above given question, did you guess or did you use evidence to get your answer? Which is the best approach?

How can you tell if your evidence is reliable or not?