Africa Storyline Study Qs

Front

What are producers in an ecosystem?

Back

Producers are organisms that produce energy for the food chain, primarily through photosynthesis.

Front

What is the net energy gained by a lion that hunts a wildebeest with 25,000 kcal of energy and costs 10,000 kcal?

Back

The net energy gained by the lion is 15,000 kcal.

Front

What is gel electrophoresis?

Back

Gel electrophoresis is a laboratory procedure used to separate DNA, RNA, or proteins based on their size and charge.

Front

What percentage of energy is typically transferred to each level in an energy pyramid?

Back

Typically, 10% of energy is transferred to each level in an energy pyramid.

Front

How do animals obtain the nitrogen they need?

Back

Animals obtain nitrogen from the food they eat.

Front

Define the term 'food chain'.

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and completing the nutrient cycle.

Front

Explain the concept of an energy pyramid.

Back

An energy pyramid illustrates the flow of energy through different trophic levels in an ecosystem, showing that energy decreases as it moves up the pyramid.

Front

What is the significance of nitrogen in biological systems?

Back

Nitrogen is essential for the production of amino acids, proteins, and nucleic acids, which are vital for all living organisms.

Front

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

Back

A food web is a complex network of interconnected food chains, showing how different organisms are related in an ecosystem.