Colonisation and Succession

Natural disturbances, such as fires or hurricanes, can result in

• A.parasitism.

• B.competition.

• C.commensalism.

• D.succession.

The end result of ecological succession is usually a(n)

• A.land biome.

• B.aquatic biome.

• C.unstable community.

• D.climax community.

Which of the following is not a possible cause of ecological succession?

• A. fire

• B. flood

• C. earthquake

• D. change of season

Examples of Abiotic Factors include:

• Weather, birds, plants, and animals

• Rocks, reptiles, shrubs, trees, and grasses

• Weather, wind, rain, sunlight, and rocks

• Birds, plants, animals, reptiles, shrubs, trees, and grasses

Several years after a building had been torn down and the ground cleared, grasses began to grow in that area. After 10 years, small bushes replaced the grasses. This pattern of plant growth is known as:

• Biological

  control

• Cover cropping

• Ecological

  succession

• Land-use

  management

Scientists found, that over a period of 200 years, a mountain pond was transformed into a meadow. During that time, several communities of organisms were replaced by different communities. Which of these best explains why new communities were able to replace older communities?

• A.The original species became extinct.

• A.Species in the older community died from old age.

• A.The abiotic characteristics of the habitat changed.

• A.Diseases that killed the older organisms disappeared.

Which of the following best

describes biodiversity

• A. a diverse Biology class

• B. variety of all life on earth

• C. a variety of plants

• D. a variety of animals

Which of the following is not a result of climate change partially caused by burning fossil fuels?

• Leaves changing color in the fall months.

• Caribou not being able to receive food for their young because of an earlier spring season.

• Ice melting in the polar regions, causing polar bears to drown.

• Acid rain falling on homes and buildings.

It is the interaction between biotic and abiotic factors.

• mangrove swamp

• ecosystem

• food chain

• rainforest

mangrove tree

• producer

• consumer

• herbivore

• carnivore