Select the correct answer from each drop-down menu. The heart is a muscular organ that pumps blood. Blood that contains waste materials is brought to the heart by blood vessels. This blood enters the and then moves down. The presence of the prevents the backflow of blood inside the heart

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Defend or refute the argument that the government has too large a presence in the agriculture industry.

Glucose is a form of sugar found in the blood cells use glucose as a source of energy, but too much or too little can cause serious health issues so, the body uses the hormone insulin to regulate glucose n the blood insulin maintain glucose levels in the blood if blood glucose lovels got very high, what would you expect to see happen to insulin levels?