Ocean Zones and Marine Habitats

Which best describes a marine ecosystem?

• A group of identical organisms

• Interactions between organisms and their ocean environment

• A single species in the ocean

• A physical structure like coral

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

Which statement about populations is true?

• Populations include only predators

• A population is made up of all species in a habitat

• Populations consist of organisms of the same species in an area

• Populations are smaller than individuals

The biotic component of an ecosystem includes:

• Rocks and sunlight

• Temperature and salinity

• Nutrients and pressure

• Plants, fish, and microorganisms

Tags

NGSS.MS-LS2-2

The abiotic factors of a coral reef include:

• Algae, fish, and bacteria

• Water temperature, light, and salinity

• Producers, consumers, and decomposers

• Predators and prey

Tags

NGSS.MS-LS2-3

Which best describes an organism’s niche?

• Its physical location

• Its job or ecological role in the environment

• Its population size

• Its geographic region

The habitat of a sea turtle would include:

• Its feeding habits

• The ocean and beaches where it lives

• Its predators and prey

• The temperature it prefers

Tags

NGSS.MS-LS2-3

Which environmental factor most directly limits the range of tolerance of marine organisms?

• Moon phases

• Ocean currents

• Temperature and salinity

• Migration routes

Tags

NGSS.MS-LS1-5

When a population reaches its carrying capacity, what occurs?

• Unlimited growth continues

• The population size stabilizes

• All resources increase

• The species goes extinct

Which distribution pattern would you expect in a coral reef with patchy food sources?

• Uniform

• Clumped

• Random

• Linear

Tags

NGSS.MS-LS2-1

Which community would likely have a uniform distribution?

• Nesting seabirds spaced evenly apart

• Schooling fish

• Floating plankton

• Kelp forest species