In the same science fair, Tina asks the question "Does caffeine
increase the heart rate of an
measures the heart rate by looking at the earthworm under a microscopes,
the earthworm has a heart rate of 50 bpm (beats per minute). In Test 2, she
places a few drops of caffeine on the earthworm's skin and measures the rate
again. In this test, the heart rate is 68 bpm.
earthworm?"

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

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

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.