6. Mary has been coughing for weeks, she has noticed when she coughs there is sometimes blood. She is not hungry and is always feeling tired. 6.1 What infection could Mary be suffering from?

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

elect 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.

1. How might the brains of other animals be different from a human brain? Because