Critical Thinking 9. Why do you think genes are so important in the development of a fetus? 10. What factors should a couple consider before they decide to have children?

Select all of the following that are true about the fern gametophyte.

MODULE 23 Assessment Vocabulary Review Correct the sentences below by replacing the italicized term with the correct vocabulary term. 1. A(n) infection is an organism that causes disease. 2. A substance that kills cells or interferes with their functions is called a(n) vector. 3. When pathogens in the body multiply and damage body cells, a(n) virus results. Understanding Key Concepts After reading the question or statement, select the correct answer. 4. The common cold and influenza are caused by a. overeating. b. viruses. c. bacterial infection. d. exposure to toxins. 5. Malaria, West Nile virus, and Lyme disease are

Select all of the following that are true about the fern gametophyte.

9. In a study of the habitat of a population of raccoons, scientists found that the number of raccoons increased where people built houses. What might the scientists conclude from this observation?

\( \checkmark \) Indique comment la ronce conquiert un autre milieu, même éloigné? Comment s'effectue alors la dissémination?