Introduction to Ecology

The video introduces ecology, a branch of biology that studies interactions between organisms and their environments. It covers Earth's spheres, ecological monitoring, and the impact of biotic and abiotic factors. The video also explains different scales of ecological study, from individual organisms to the biosphere, and concludes with resources for further learning.

What is the primary focus of ecology as a scientific discipline?

• The classification of living organisms

• The chemical composition of the Earth's crust

• The interactions between organisms and their environments

• The study of individual organisms

What is the term for all the regions of the planet occupied by living organisms?

• Cryosphere

• Biosphere

• Lithosphere

• Atmosphere

Which sphere of Earth is characterized by frozen water?

• Biosphere

• Cryosphere

• Lithosphere

• Atmosphere

What are abiotic factors in an ecosystem?

• Non-living elements like water and sunlight

• Fungi and molds

• Living organisms like plants and animals

• Microorganisms like bacteria

Which of the following is a biotic factor?

• Water

• Sunlight

• Bacteria

• Soil

At which level do ecologists study the interactions between different species living in the same area?

• Biosphere level

• Community level

• Population level

• Organism level

What is the focus of ecologists studying at the ecosystem level?

• The flow of energy and recycling of nutrients

• The genetic makeup of species

• The behavior of individual organisms

• The global climate patterns