Question

read the passage. then answer the question below.

image: a tasselled wobbegong shark on a coral reef
coral reefs in indonesia have more than 1,500 species of fish. that’s more fish species than anywhere else on the planet! these fish range from tiny pygmy seahorses to huge queensland groupers. pygmy seahorses live on a type of pink, bumpy coral that looks just like the seahorses’ skin. the coral provides the perfect camouflage.

some fish species, such as bigeye trevally, swim in schools. other species, such as the tasselled wobbegong shark, hunt alone.

on a coral reef in indonesia, a school of bigeye trevally make up which of the following? select all that apply.

• a population
• part of a community
• part of an ecosystem

Explanation:

• A population is a group of individuals of the same species in a given area. A school of bigeye trevally (same species) in the coral reef (a given area) is a population.
• A community is all the different populations (species) in an area. The bigeye trevally population is part of the larger community of species in the coral reef.
• An ecosystem includes all living (biotic) and non - living (abiotic) components in an area. The coral reef ecosystem has the bigeye trevally (biotic) along with the coral, water, etc. (abiotic and other biotic), so the school is part of the ecosystem.

Answer:

a population, part of a community, part of an ecosystem