Energy enters most ecosystems as sunlight. Within an ecosystem, energy is transformed, used, and exits the ecosystem as heat. Drag the terms to complete this concept map about energy and trophic levels.

Which of the following best describes the relationship between glucose and complex molecules such as hormones?

Which of the following is a testable hypotheses?

Which of the following terms best matches this definition: the process where humans choose the traits that will be present in the next generation through breeding. question 4 options: genetic determinism artificial selection acquired selection natural selection