What role do decomposers play in a food web?

In a food web, which of the following best describes a primary consumer?

What is a key characteristic of a food web compared to a food chain?

What is the primary source of energy for almost all food webs on Earth?

In a food web, what happens if a top predator is removed from the ecosystem?

What happens to the amount of energy available as you move up each level of the energy pyramid?

Which of the following is an example of parasitism?

What type of symbiosis occurs when both species benefit from the relationship?

What is the relationship called when one organism benefits from another without affecting it?

Which of the following is an example of mutualism?

In an ecosystem, which symbiotic relationship is characterized by one organism living on or inside another organism and causing it harm?

What is the primary concept behind the theory of evolution by natural selection?

What is the main mechanism by which genetic diversity is introduced into a population?

What is the term for a trait that enhances an organism's ability to survive and reproduce in its environment?

What is the term for the change in the genetic makeup of a population over time?

What is the process by which organisms better adapted to their environment tend to survive and produce more offspring?

Which of the following best describes homologous structures?

What type of evidence for evolution do similarities in embryonic development among different species provide?

What do vestigial structures in organisms indicate?