A Community of Different Species Interacting with One Another and the Physical

question 60

Multiple Choice

A community of different species interacting with one another and the physical and chemical factors of their nonliving environment is called a(n)

• A)species
• B)ecosystem
• C)population
• D)lithosphere
• E)community

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Definitions:

Cephalization

Having a well-recognized anterior head with a brain and sensory receptors.

Nematocysts

Specialized cells in the tentacles of cnidarians (such as jellyfish) that discharge a barbed or venomous coiled thread in response to touch.

Cnidarians

A phylum of aquatic invertebrate animals that includes jellyfish, corals, and sea anemones, characterized by their cnidocytes.

Filter Feeders

Organisms that feed by straining suspended matter and food particles from water, usually by passing the water over a specialized filtering structure.