Category 5

Front

What is a pyramid of energy in an ecosystem?

Back

A graphical representation showing the energy flow through different trophic levels in an ecosystem, with producers at the base and top predators at the apex.

Front

Which level of a pyramid of energy typically contains members of the plant kingdom?

Back

The base level (producers), which is usually labeled as Level D.

Front

What happens to the energy as it moves up the trophic levels in an ecosystem?

Back

Energy decreases as it moves up trophic levels due to energy loss through metabolic processes.

Front

What is nitrogen fixation?

Back

The process by which nitrogen gas from the atmosphere is converted into ammonia or related compounds in soil, primarily by bacteria.

Front

How does a disease in rabbits affect grass in an ecosystem?

Back

If rabbits become diseased, their population may decrease, allowing grass to thrive due to reduced herbivory.

Front

What is denitrification?

Back

The process by which bacteria convert nitrates in the soil back into nitrogen gas, releasing it into the atmosphere.

Front

What catastrophic event can lead to primary succession?

Back

A volcanic eruption can create new land, allowing primary succession to occur as organisms colonize the area.

Front

If there are 1000 Kcal in producers, how much energy is available in herbivores?

Back

100 Kcal, as energy transfer between trophic levels is typically about 10%.

Front

What is the role of producers in an ecosystem?

Back

Producers, such as plants, convert sunlight into chemical energy through photosynthesis, forming the base of the food chain.

Front

What is the significance of trophic levels in an ecosystem?

Back

Trophic levels illustrate the flow of energy and nutrients through an ecosystem, showing the relationships between different organisms.