Review - How Organisms Obtain Energy

Front

What is an amino acid?

Back

An amino acid is the building block of proteins, consisting of a central carbon atom, an amino group, a carboxyl group, and a variable side chain (R group).

Front

What are trophic levels?

Back

Trophic levels are the different levels in a food chain or food web, representing the flow of energy from producers to various levels of consumers.

Front

What does a well-developed cecum indicate about an organism?

Back

A well-developed cecum indicates that the organism is likely a herbivore, as it helps in the digestion of fibrous plant material.

Front

How does a decrease in prey populations affect predator populations?

Back

If the populations of prey (like frogs and mice) decrease, the predator population (like owls) may also decrease due to a lack of food.

Front

What is a primary consumer?

Back

A primary consumer is an organism that eats producers (plants), such as herbivores like grasshoppers.

Front

Define producers in an ecosystem.

Back

Producers are organisms, typically plants, that create their own food through photosynthesis and form the base of the food chain.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and helping to recycle matter in the ecosystem.

Front

What is the difference between herbivores, carnivores, and omnivores?

Back

Herbivores eat only plants, carnivores eat only animals, and omnivores eat both plants and animals.

Front

Explain the concept of a food web.

Back

A food web is a complex network of interconnected food chains in an ecosystem, showing how energy and nutrients flow between different organisms.

Front

What is the significance of energy transfer in trophic levels?

Back

Energy transfer in trophic levels is significant because only about 10% of energy is passed from one level to the next, affecting population dynamics.