ecology

• What is meant by 'niche'?

  The role of an organism within its habitat.
• What is meant by 'species'?

  Individuals that resemble each other and can breed among themselves to produce fertile offspring.
• What is meant by 'population'?

  The total of number of one species in an ecosystem.
• What is meant by 'habitat'?

  The place where an organism lives.
• What is meant by 'ecosystem'?

  The interaction of a community of biotic and abiotic organisms in their environment.
• What is meant by 'biodiversity'?

  The variety of all the different species of organisms.