Biotic or Abiotic
Impacts
Miscellaneous
Scenarios
Vocabulary
100
What does the prefix a- mean?
not or non
100
How might a drought or forest fire affect the biotic factors living there?
They will either perish or have to move to survive.
100
Provide an example of a species and describe its role in its community.
varies
100
In 1998, a devastating fire destroyed a great deal of Yellowstone National Park. Although many of the organisms were killed or displaced, existing seeds began to immediately recolonize the park.
This is an example of what
secondary succession
100
Define niche
The role an organism plays in an ecosystem
200
Is the amount of moisture available in an ecosystem a biotic or abiotic factor?
abiotic factor
200
Is a dead tree biotic or abiotic? Explain.
Biotic, it was once living.
200
Since a disturbed area already has _______, it can be recolonized much more quickly than the bare rock of primary succession.
soil
200
Following the 1980 eruption of Mount St. Helens, the surrounding area was devoid of life. After some time, small lichens began to grow along with the remaining soil.
What term best describes this species of lichen?.
pioneer species
200
Define biodiversity
The variety of life in a specific area
300
Is a snail a biotic or abiotic factor?
biotic factor
300
How long does it take for Primary Succession to occur?
Hundreds to thousands of years
300
An introduced species that takes over its new environment and out-competes native organisms is called...
invasive species
300
Mr Erb built a new concrete basketball court in his backyard since he is a former NBA player. What type of succession will have to occur for his yard to be turned back into grass?
Primary Succession
300
A ecosystem with a high biodiversity is more or less stable, than an ecosystem with low biodiversity? Explain
more stable and able to withstand environmental disturbances.
400
What does the root word "bio-" mean?
The root word "bio-" means "life" or "living".
400
Which of the following is a limiting factor that could decrease a population: food scarcity, abundance of water, or stable climate?
Food scarcity
400
What is a climax community?
The end of succession with fully grown plants
400
A dirt field is plowed and left over the summer. If small grasses start growing over the summer, what plant will follow?
Shrubs, bushes, baby trees
400
Describe the difference between a habitat and a niche.
A habitat is where an organism lives, while a niche is its role in that environment
500
Is the bacteria found in soil a biotic or abiotic factor?
biotic factor
500
How do humans contribute to the risk of biodiversity with exotic species?
Humans like to bring invasive and exotic species to non-native areas. This could be harmful to biodiversity because these pets could harm plants and animals. They could carry diseases.
500
Do lichens exist in secondary succession? Why or why not?
Yes. They are constantly breaking down rock to make new soil.
500
Following the 1980 eruption of Mount St. Helens, the surrounding area was devoid of life.
This is an example of:
primary succession
500
What is a limiting factor in an ecosystem?
A factor that restricts the growth, abundance, or distribution of a population.