Match the following vocabulary words with the correct definitions. 1. to become a liquid or part of a liquid

enzyme

2. chemical which helps speed up reactions

epidermis

3. milky liquid with drops of fat or oil spread evenly throughout

hemoglobin

4. iron compound in red blood cells

emulsion

5. outer layer of cells

dissolve

6. done, made, or given by one own choice

voluntary

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