Anton Van Leeuwenhoek discovered _________

The urethra and 2 ureters carry urine out of the body. They are part of the ________ system.

What is the name of the tube, located near the windpipe, that takes food from the throat to the stomach?

I am a particularly important nutrient in the first two years of life, but after that you need to limit how much of me you consume. What am I?

what are two nutrients that are very important to the body and but are needed in smaller quantities than proteins, fats, and carbohydrates?

I am a liquid that is vitally important to all life on Earth. What am I?

I am a favorite snack food made from potatoes and fried in oil. I am sold at many fast food restaurants, but it would be unhealthy to eat me every day. What am I?

We are made up of cells and tissues and work within body systems. We include both the heart and the brain. What are we?

groups of cells that perform the same function are _______

Cells are microscopic