Question | Answer |
A drought would most likely cause a herd of wildebeests to | migrate further to find food. |
What natural disaster might cause a species of fish to move from one pond to another? | flood |
If soil is present, the type of succession is ... | secondary succession |
What is the first step in the eutrophication of a pond? | excessive nutrients build up in the water |
What would happen to the biodiversity of an area if it experienced a volcanic eruption? | Biodiversity would decrease |
How can you distinguish between primary and secondary succession? | Primary succession begins with no soil; Secondary succession has soil present at the beginning. |
What does biodiversity indicate about an ecosystem? | The ability to survive change. |
Is it possible for a pond to become a meadow from eutrophication? | Yes |
What are examples of pioneer species and what do they do? | Lichen and mosses that break down rock into soil. |
What happens to the number of species in an ecosystem during succession? | The number increases as succession proceeds. |
Are ecosystems constantly changing over time? | Yes |
How do ecosystems change over time? | Biological communities are gradually being replaced by other communities. |
Which ecosystem likely has the greatest biodiversity and highest sustainability? | Rain Forest |
How does natural eutrophication affect a pond ecosystem? | It causes nutrients to build up. |