Dynamic Ecosystems

Barnacles are animals that cannot move. In order to get food, they attach to whales and catch any floating plankton in the water. The whale is neither helped nor harmed in the interaction. What type of symbiosis is this?

• Mutualism

• Commensalism

• Parasitism

• Amensalism

Tags

NGSS.MS-LS2-2

In the sea, little fish called pilot fish swim closely to sharks. The pilot fish clean the sharks, and the sharks provide protection for the pilot fish. What type of symbiosis is this?

• Mutualism

• Commensalism

• Parasitism

• Amensalism

Tags

NGSS.MS-LS2-2

In an ecosystem, there are populations of deer, rabbits, grass, and pine trees. Suddenly, a fire blazes through the area, which kills all of the populations. As the months go on, new species of grass begin to take root. This attracts animals, and eventually the ecosystem is restored.

What type of ecological succession happened?

• Primary succession because it started with rocks.

• Primary succession because there was soil to begin with, and plants existed before the disaster.

• Secondary succession because it started with rocks.

• Secondary succession because there was soil to begin with, and plants existed before the disaster.

In Hawaii, there are volcanoes. Before anything was there, the volcanoes erupted which produced volcanic rock. Lichens were the first species to arrive, and they broke down the rock into soil. Eventually, plants began to grow. Now, the islands are functioning at their climax community.

Is this an example of primary or secondary succession?

• Primary succession

• Secondary succession

Tags

NGSS.MS-LS2-3

In Hawaii, there are volcanoes. Before anything was there, the volcanoes erupted which produced volcanic rock. Lichens were the first species to arrive, and they broke down the rock into soil. Eventually, plants began to grow. Now, the islands are functioning at their climax community.

What is the pioneer species in this example?

• Shrubs

• Lichens

• Trees

• Rock

What is this picture describing?

• It is describing direct competition between flamingos and ducks.

• It is describing natural selection as it follows the disruptive selection pattern.

• It is describing the niche of each bird within the tree.

• It is describing abiotic factors of the tundra.

Tags

NGSS.MS-LS2-2

What term describes the ability of an organism or ecosystem to adapt after a disturbance?

• Tolerance

• Resilience

• Biodiversity

• Niche

The ability to recover from or adjust from or adjust easily to misfortune or change.

• Catastrophic

• Disruptive

• Resilient

• Population

A group of animals, plants or other living things that all share common characteristics and that are all classified as alike in some manner.

• Population

• Species

• Ecosystem

• Prevalent

Tags

NGSS.MS-LS4-4

A system that includes all living organisms (biotic factors) in an area as well as its physical environment (abiotic factors or nonliving things) functioning together as a unit.

• Population

• Catastrophic

• Species

• Ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4