Question: You are presented with the question "What is one thing studied in immunology?" and the following answer choices:  - illness  - antigens  - humanism  - health  - philosophy  - resistance  - symbology  - fever  Now knowing that antigens are molecules that the immune system recognizes as foreign to the body and immunology is the study of the immune system, choose the best answer.
Answer: antigens

Question: You are presented with the question "Vaccines that offer protection from cervical cancer target " and the following answer choices:  - animals  - organ  - health  - glioblastoma  - bacteria  - measles  - it's state  - viruses  Now knowing that some viruses can cause cancer and human papillomavirus vaccine is aimed at the cause of most cases of cervical cancer, choose the best answer.
Answer: viruses

Question: You are presented with the question "What breathing use gills to convert oxygen in blood?" and the following answer choices:  - sharks  - octopus  - hippos  - a fish  - Lobsters  - water bugs  - trout  - alligators  Now knowing that breathing is when a gill converts from oxygen in water into oxygen in blood and shark gills remove the oxygen from the water, choose the best answer.
Answer:
sharks