Alex is a 32-year-old man who is scheduled to travel to a country where hepatitis a is endemic. he leaves in 3 weeks and will be gone a month. he received his first dose of hepatitis a vaccine today. alex should be counseled to return for his second dose of hepatitis a vaccine:

Classify the descriptions and examples as endocrine or neural control

Cells destroy body cells infected by a virus or bacteria.

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water. b. they use chlorophyll and oxygen to make carbon dioxide and water. c. they use sunlight, water, and carbon dioxide to make sugars. d. they use sunlight, water, and oxygen to make chlorophyll.