Answer:
1. Ecological Changes and Agricultural Development
2. Changes in Human Demographics and Behavior
3. International Travel and Commerce
4. Technology and Industry
5. Microbial Adaptation and Change
<h2>hope this helps</h2>
Explanation:
The heart consists of four chambers in which blood flows. Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle
Medical waste that doesn’t include used needles etc should be discarded in a biohazard bag waste container
