4-SW Benchmark Review #2

Front

What is the energy transfer efficiency from producers to herbivores in a trophic level?

Back

Typically, only about 10% of the energy from producers (trophic level 1) is transferred to herbivores (trophic level 2). For example, if there are 1000 Kcal in producers, there would be approximately 100 Kcal available for herbivores.

Front

Which biomolecule is primarily responsible for long-term energy storage?

Back

Lipids are the biomolecules involved in long-term energy storage.

Front

What are enzymes and what role do they play in chemical reactions?

Back

Enzymes are special proteins that speed up chemical reactions in the body.

Front

What is an invasive species?

Back

An invasive species is a non-native species whose introduction causes harm to the new environment.

Front

What type of symbiotic relationship is exemplified by ticks feeding on deer blood?

Back

This is an example of parasitism, where one organism benefits at the expense of another.

Front

What is the primary function of carbohydrates in living organisms?

Back

Carbohydrates are primarily used for short-term energy storage and providing structural support.

Front

Define mutualism in ecological terms.

Back

Mutualism is a symbiotic relationship where both species benefit from the interaction.

Front

What is the role of keystone species in an ecosystem?

Back

Keystone species are crucial for maintaining the structure of an ecological community, affecting many other organisms.

Front

What is the difference between commensalism and parasitism?

Back

In commensalism, one species benefits while the other is neither helped nor harmed; in parasitism, one species benefits at the expense of the other.

Front

What are proteins and their functions in the body?

Back

Proteins are large biomolecules made of amino acids that perform a variety of functions, including acting as enzymes, hormones, and structural components.