B, an Amoeba. Amoebas are a great example of a unicellular organism, and they rely on a surface area to volume ration which allows them to grow and eat.
Answer:
Omnivore - An animal that eats both plants and animals.
Scavenger - An animal that feeds on dead animals/plants.
Herbivore - An animal that only feeds off of plants.
A food chain is the order in which we can see which predators eat which prey. Food chains are easier to understand at a glance then a food pyramid.
Differentiated cell and tissues can not make a new cell.
So, this includes parenchyma, phloem, <span>xylem.
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