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Ecosystem Energy Flow Quiz

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Questions and Answers

Which of the following best describes the flow of energy in an ecosystem?

Energy flows from decomposers to consumers to producers

Energy flows from decomposers to producers to consumers

Energy flows from producers to consumers to decomposers (correct)

Energy flows from consumers to producers to decomposers

What is the role of decomposers in an ecosystem?

To consume other organisms for energy

To provide energy to producers through photosynthesis

To hunt and kill other organisms for food

To break down dead organisms and recycle nutrients back into the ecosystem (correct)

How does energy enter an ecosystem?

Through the consumption of other organisms

Through the process of photosynthesis

Through the sun's energy being converted into food by producers (correct)

Through the decomposition of dead organisms

Which of the following statements about genetics is true?

Genes can be turned on or off by environmental factors. Signup and view all the answers

What is the difference between genotype and phenotype?

Phenotype refers to physical traits, while genotype refers to genetic makeup. Signup and view all the answers

What is a dominant gene?

A gene that is always expressed, regardless of whether it is inherited from one or both parents. Signup and view all the answers

Which of the following is true about genetics?

Genetics can influence both physical and behavioral traits Signup and view all the answers

What is the role of DNA in genetics?

DNA is the genetic material that carries information for traits Signup and view all the answers

What is the difference between dominant and recessive genes?

Dominant genes are expressed when paired with a recessive gene, while recessive genes are only expressed when paired with another recessive gene Signup and view all the answers

Which of the following statements is not consistent with Darwin's theory of natural selection?

All individuals in a population have the same traits Signup and view all the answers

Which of the following is a key component of Darwin's theory of natural selection?

Differential survival and reproduction based on advantageous traits Signup and view all the answers

Which of the following is inconsistent with the process of natural selection?

The equal survival and reproduction of all individuals Signup and view all the answers