Question

which form of symbiosis exists between the sharks and the small fish?
a o commensalism
b o predation
c o parasitism
d o mutualism

Explanation:

• Commensalism: One organism benefits, and the other is neither helped nor harmed. In this case, the small fish benefit from food (the shark's leftover food), and the shark is not harmed.
• Predation: One organism (predator) kills and eats another (prey). Here, the shark does not eat the small fish, so this is not predation.
• Parasitism: One organism (parasite) lives on or in another (host) and harms it. The shark is not harmed, so this is not parasitism.
• Mutualism: Both organisms benefit. The shark gets no benefit (as stated the shark is not harmed but there's no indication of a benefit like cleaning etc. in the description), so this is not mutualism.

Answer:

A. commensalism