Which statement most closely describes how the polio vaccine works? a) it allows the blood to filter out the disease-causing agent. b) it prevents the disease-causing agent from entering the body. c) it attacks the disease-causing agent as soon as it enters the body. d) it triggers the immune system to produce antibodies to fight the disease-causing agent.

Which statement is most likely megan’s conclusion? the hypothesis is supported because the most common blood type in the united states is ab+. the hypothesis is not supported because the most common blood type in the united states is o+.

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

Fill in the blank 1. digestion occurs in the small intestine through the action of enzymes. 2. urea, excess water, and other waste materials are eliminated in a water fluid called 3. can cause infections by injecting dna or rna into hosts. 4. the human immune system produces in response to a vaccine, which later can bind to and destroy a pathogen if it invades. 5. are structures that link bone to bone at a joint 6. in the heart, blood flows from the right atrium to the right ventricle, where it is pumped to the the words i can use are: lymphocytes gliding pivot gas urine absorption dermis fulcrum lungs chemical viruses capillary vertebrae esophagus tendons antibodies synapses ligaments kidneys pathogens