Key Ecology Terms

The video tutorial introduces key ecological concepts, starting with ecosystems, which consist of communities of organisms and environmental factors. It explains the difference between habitats and ecosystems, and defines populations and communities. The roles and niches of species within ecosystems are discussed, using examples like bees and rabbits. The concept of species and interbreeding is illustrated with examples of butterflies in different woodland areas. The video concludes with a recap of the differences between habitat, ecosystem, population, and community, emphasizing the niche of species within ecosystems.

What is the primary difference between an ecosystem and a habitat?

• An ecosystem is a geographical area, while a habitat is a community of interacting organisms.

• A habitat is larger than an ecosystem.

• An ecosystem includes only living organisms, while a habitat includes both living and non-living factors.

• A habitat is a specific area where an organism lives, while an ecosystem includes interactions between organisms and their environment.

Which of the following best describes a population?

• The physical environment where organisms live.

• The role a species plays in its ecosystem.

• All the different species living in a habitat.

• All members of the same species living in a habitat at one time.

How does a community differ from a population?

• A community includes multiple species, while a population includes only one species.

• A community is a single species, while a population includes multiple species.

• A community is the physical environment, while a population is the organisms living in it.

• A community is larger than a population.

What is the role of a bee within an ecosystem?

• To provide shade.

• To decompose organic matter.

• To pollinate flowers.

• To be a predator.

Why might two different species of butterfly not interbreed in the same woodland?

• They are both predators and compete for the same prey.

• They live in different areas of the woodland and have different light preferences.

• They are both herbivores and eat the same plants.

• They are the same species but prefer different foods.