bio revision grd 9

Which of the following is an example of a biotic factor in an ecosystem?

Which of the following is an example of secondary succession?

Which of the following organisms is considered a producer in an ecosystem?

What is primary succession?

Which of the following is NOT a typical feature of an early-stage succession?

Which term refers to organisms that break down dead organisms and return nutrients to the soil?

What is the niche of an organism?

Which of the following is a density-dependent factor affecting population growth?

What is the process of photosynthesis responsible for?

Which type of symbiotic relationship benefits both species involved?

Which factor contributes to the success of pioneer species in primary succession?

In a food web, which organisms are most affected by changes in the population of primary producers?

What happens when two species occupy the same niche?

What is the role of herbivores in an ecosystem?

What is the process by which plants release water vapor into the atmosphere?

Which demographic transition phase is characterized by a high birth rate and a declining death rate?

In the phosphorus cycle, where is phosphorus most commonly found?

Which of the following is NOT a part of the water cycle?

In the nitrogen cycle, which process converts atmospheric nitrogen into a form plants can use?

What is the primary source of energy for most ecosystems?

Which of the following describes a food chain?

Which of the following is a density-independent factor?

What is a climax community?

What is the main reason for the rapid increase in human population in the last century?

What type of interaction occurs when one organism is harmed and the other benefits?

Which factor directly affects the growth rate of a population?

Which of the following is a characteristic of an invasive species?

Which of the following is an example of a habitat?

What is the carrying capacity of an ecosystem?