Biosphere and Ecology Quiz

Biosphere and Ecology

• Biosphere refers to all parts of the Earth where life can exist, including land, water, and air.
• Ecology is the branch of biology that deals with the interactions among living things and their environment.

Ecosystem and Community

• An ecosystem is a community of different species interacting with one another and with their non-living environment of matter and energy.
• A community is a group of populations of different species living in a particular place and potentially interacting with each other.

Population and Organism

• A population is a group of individuals of the same species living in a particular place.
• An organism is an individual living being.

Basic Units of Life

• A cell is the fundamental structural and functional unit of life.
• A molecule is a chemical combination of two or more atoms of the same or different elements.
• An atom is the smallest unit of a chemical element that exhibits its chemical properties.

Water Composition

• Water is composed of hydrogen and oxygen.

Biodiversity

• Biodiversity refers to the variety in a biological community.
• Greater biodiversity leads to a more stable ecosystem.
• Examples of ecosystems with high and low biodiversity: rain forests (high) and tundras (low).
• Loss of biodiversity can cause an ecosystem to collapse.