What the hell is this a answer
To prevent blood flowing back after each heartbeat. They ensure that the blood flows only in one direction (back to the heart).
2. If i were a forensic scientistand was called to a crime scene to see if drugs were present in the crime scene iwould use different kind of test to help me determine this, like for examplespectrophotometry tests, Microcrystalline test, and Color test. Because all of these<span>tests would help me to determine if drugs were to be present in the crime scene</span>3.It's important forscientist to have as much information as possible about the place that the drugsubstance is found because many factors can contribute when identifying a type ofdrug and because there might of have been some other substances with the drugand this could affect identifying the drug substance
We will also be telling you how cancer affects the digestive system and its ability to maintain homeostasis. Body temperature is an example of what affects homeostasis. ... First of all, the digestive system helps you transfer food to your stomach and it takes the good stuff and transfers it using the circulatory system.
