Openscied Ecosystem Dynamics

In the predator - prey relationship, _________________.

• the prey are producers

• the prey hunts the predator for food

• the prey keeps the predator population from growing too large

• the predator hunts the prey for food.

Tags

NGSS.MS-LS2-4

A symbiotic relationship that benefits both species is referred to as

• mutualism

• commensalism

• parasitism

• cooperation

The largest number of individuals of one species that an ecosystem can support over time is

• biotic potential

• carrying capacity

• limiting factors

• community

Tags

NGSS.MS-LS2-4

Primary succession takes longer than secondary succession because

• fires take longer to recover from

• there is no soil at the beginning of secondary succession

• there is no soil at the beginning of primary succession

• droughts and floods occur

If two animals need meat from the same prey, there is ________ for that food source

• cooperation

• competition

• condensation

• community

In succession, which organisms arrive first?

• mature trees

• small animals

• lichens and mosses

• large predators

Which change in an ecosystem increases the carrying capacity for a particular species?

• fire

• disappearance of a competing species

• flood

• appearance of a competing species

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the difference between a community and an ecosystem?

• An ecosystem includes living and nonliving things in an area and a community includes all the populations in an area

• An ecosystem includes living and nonliving things in an area and a community is all the members of one species in the area.

• An ecosystem includes the nonliving things in an area and a community includes the living things.

• An ecosystem includes the living things in an area and a community includes the nonliving things.

Which is a limiting factor?

• food

• shelter

• existence of predators

• all of these

Tags

NGSS.MS-LS2-1

A climax community is a community that

• is at the beginning of succession

• is about to experience a major change

• is a stable community that no longer goes through major ecological changes

• is always characterized by large trees