Populations and Resources Chapter 3

Front

What is a resource population?

Back

A resource population refers to a group of organisms that provide resources for other organisms in an ecosystem, such as food or habitat.

Front

What is an energy storage molecule?

Back

An energy storage molecule is a type of molecule that organisms use to store energy for later use, such as glucose.

Front

What is a Food Web?

Back

A Food Web is a model that illustrates the complex feeding relationships between organisms in an ecosystem, showing who eats whom.

Front

What is an indirect effect in an ecosystem?

Back

An indirect effect is when one cause leads to an effect that causes one or more other effects, impacting multiple organisms.

Front

What is competition in ecology?

Back

Competition occurs when two or more populations use the same resource, leading to a struggle for survival.

Front

Define zooplankton.

Back

Zooplankton are small, often microscopic animals that drift in water and serve as a food source for larger organisms.

Front

What role do consumers play in an ecosystem?

Back

Consumers are organisms that obtain energy by eating other organisms, playing a crucial role in energy transfer within food webs.

Front

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

Back

A food chain is a linear sequence of organisms where each is eaten by the next, while a food web is a complex network of interconnected food chains.

Front

What is a primary producer?

Back

Primary producers are organisms, like plants and algae, that produce energy through photosynthesis, forming the base of the food web.

Front

Explain the term 'trophic level.'

Back

A trophic level is a position in a food chain or web, defined by how an organism obtains energy, such as producers, primary consumers, and secondary consumers.