Ecology Final 2024

Front

___________ services are processes provided by healthy ecosystems that support life and human economies at no monetary cost to us.

Back

Ecological services are essential processes provided by ecosystems that benefit both life and human economies without any financial cost.

Front

What is one of the biogeochemical cycles?

Back

Nitrogen cycle is one of the key biogeochemical cycles that describes the movement of nitrogen through the atmosphere, soil, and living organisms.

Front

_________       ______________: extinction of many species in a relatively short period of geologic time.

Back

Mass extinction refers to the rapid loss of a large number of species within a relatively short geological timeframe.

Front

Nitrogen fixation is accomplished by _____.

Back

Nitrogen fixation is primarily accomplished by bacteria, which convert atmospheric nitrogen into a form usable by plants.

Front

Define ecological services.

Back

Ecological services are the benefits that humans derive from ecosystems, including clean air, water purification, pollination, and climate regulation.

Front

What is the role of bacteria in the nitrogen cycle?

Back

Bacteria play a crucial role in the nitrogen cycle by fixing atmospheric nitrogen into ammonia, which can be used by plants.

Front

What is a biogeochemical cycle?

Back

A biogeochemical cycle is the movement of elements and compounds through biological, geological, and chemical processes in the environment.

Front

What is mass extinction?

Back

Mass extinction is an event in which a significant percentage of all life on Earth becomes extinct in a relatively short period.

Front

Name a process that contributes to the carbon cycle.

Back

Photosynthesis is a key process in the carbon cycle, where plants convert carbon dioxide into organic matter using sunlight.

Front

What is the significance of nitrogen fixation in ecosystems?

Back

Nitrogen fixation is vital for ecosystems as it makes nitrogen available to plants, which is essential for their growth and development.