(D) Lymphatic system
(I think lol)
One of the Lymphatic systems major jobs is to collect extra lymph fluid from body tissues and return it back to the blood.
Orgainsm. This is the only word that makes sense. The statement is already talking about interrelated systems, so system wouldn't be the answer.
Tissue and Organ do not define a functional plant or animal either.
I hope this helps!
Robert Hooke observed cork cells first used the word "cell".
Anton van Leeuwenhoek used polished lens observed "animalcules"
Explanation:
Anton van Leeuwenhoek is known as father of microbiology. He is credited to improve the quality of lens in microscope. His first observation of organisms called animalcules.
He is credited to have build microscope that could get magnified by 200 times. He used word animalcules for small organisms from pond water when first observed in microscope. He discovered protozoa and named it animalcules".
Robert Hooke is famed for discovering cell from a cork of plant. He observed a compartment or honey comb like divisions when observed these cork cells under the microscope and named it cell. He was only able to see the cell wall as the cork cells are dead cells.
