Energy Review - Env. Sci.

Front

What is the energy transfer efficiency between trophic levels in an energy pyramid?

Back

Typically, only about 10% of the energy is transferred from one trophic level to the next.

Front

What is a producer in an ecosystem?

Back

Producers are organisms that can make their own food through photosynthesis, such as plants.

Front

Define a herbivore.

Back

Herbivores are animals that primarily eat plants.

Front

What is a carnivore?

Back

Carnivores are animals that primarily eat other animals.

Front

What percentage of energy is lost as heat or used by organisms for survival at each trophic level?

Back

Approximately 90% of energy is lost as heat or used for survival.

Front

What is a third-level consumer?

Back

A third-level consumer is typically a carnivore that eats second-level consumers.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms, while a food web is a complex network of interconnected food chains.

Front

How much energy is available to herbivores if there are 50,000 Kcal in producers?

Back

500 Kcal is available to herbivores in trophic level 3.

Front

What is the primary source of energy for most ecosystems?

Back

The primary source of energy for most ecosystems is the sun.