Answer:
lungs:
The blood first enters the right atrium.
The blood then flows through the tricuspid valve into the right ventricle.
When the heart beats, the ventricle pushes blood through the pulmonic valve into the pulmonary artery.
The pulmonary artery carries blood to the lungs where it “picks up” oxygen.
It then leaves the lungs to return to the heart through the pulmonary vein.
The blood enters the left atrium.
It drops through the mitral valve into the left ventricle.
The left ventricle then pumps blood through the aortic valve and into the aorta. The aorta is the artery that feeds the rest of the body through a system of blood vessels.
Blood returns to the heart from the body via two large blood vessels called the superior vena cava and the inferior vena cava. This blood carries little oxygen, as it is returning from the body where oxygen was used.
The vena cavas pump blood into the right atrium and the cycle begins all over again.
In the given case, the person Chad is suffering from hepatitis.
Hepatitis refers to the inflammation of the liver. The viruses are the prime causes for the majority of hepatitis cases. The kind of hepatitis is named for the virus, which causes it, like hepatitis A, hepatitis B, or hepatitis C. Some of the common symptoms of hepatitis are:
1. Loss of appetite
2. Fatigue
3. Mild fever
4. Joint or muscle pain
5. Pain in the belly and nausea and vomiting
Answer:
Phytoplankton are the autotrophic components of the plankton community and a key part of ocean and freshwater ecosystems.
Answer:
fluvial wetlands
Explanation:
The earliest megafossils of land plants were thalloid organisms, which dwelt in fluvial wetlands and are found to have covered most of an early Silurian flood plain. They could only survive when the land was waterlogged.
The gradual change in living communities that follows a disturbance is called a succession.
