Ecosystem and Ecology Concepts

The video explores ecology, focusing on how life interacts with the environment. It covers ecological levels of organization, including populations, communities, and ecosystems, and explains biomes and the biosphere. The impact of human activity on the environment is discussed, highlighting the role of keystone species and the potential consequences of climate change. The video concludes with a reflection on the influence of notable scientists in the field of ecology.

What is the primary focus of ecology?

• The study of individual organisms

• The study of human history

• The study of how life interacts with the environment

• The study of non-living components of the Earth

Which of the following is a limiting factor in population growth?

• Abundance of food

• Lack of predators

• Unlimited space

• Disease

What is the term for the maximum number of individuals an environment can sustain?

• Carrying capacity

• Exponential growth

• Population crash

• Limiting factor

In a community, what is a niche?

• The non-living components of an environment

• The physical space an organism occupies

• The role and position a species has in its environment

• A group of the same species living in an area

How do different species in the same habitat avoid competition?

• By occupying different niches

• By migrating to different areas

• By sharing the same resources

• By forming alliances

What is an ecosystem composed of?

• Only living organisms

• Only non-living components

• Only plants and animals

• Both living and non-living components

What is a keystone species?

• A species that is the most numerous in an ecosystem

• A species with a disproportionately large impact on its ecosystem

• A species that is always at the top of the food chain

• A species with no impact on its ecosystem

Which biome is characterized by long cold winters and short warm summers?

• Desert

• Tundra

• Taiga

• Rainforest

What is the biosphere?

• The entire Earth

• The Earth's core

• The part of Earth where life exists

• The Earth's atmosphere

How can changes in the biosphere impact life?

• They have no impact

• They can cause species to evolve

• They can have a tremendous impact on life

• They only affect non-living components