They are all living, they grow, reproduce, excrete, respire and require nutrition. They all differ, the human, oak tree, sea weed and mushroom are multicellular( prokaryotes), and the rest are Unicellular( Eukaryotes). The sea weed& most bacterium produce their own food while the rest need to feed.
They are all living things. Bacterium and an amoeba are single celled organism while the rest are multicellular organisms. Mushrooms are a type of decomposer. Oak trees and seaweed are producers. A person is a consumer. Everything in the world is a living organism.
I think the correct answer from the choices listed above is option C. The function that is both performed by goblet cells and lacrimal glands is protection. They produce mucus in order to protect mucous membranes. Hope this answers the question.