Is it true that only cells that do not have a nucleus can do mitosis?

Why are estuaries and coral reefs more productive than deeper regions of the ocean?

Certain substances pass from the blood in the glomerular capillaries into the ultrafiltrate under normal circumstances. Other substances will only appear in the ultrafiltrate under abnormal circumstances.

What are muscles located in atria that contract and send blood to their respective ventricles?

A scientist is examining an organism that feeds on decaying matter to gain energy for survival. What kingdom would be the best option when classifying this organism? Animalia Archaea Fungi Plantae

Which process is the major source of oxygen released into the atmosphere? A. cellular respiration B. photosynthesis C. automobile exhaust D. the weathering of rocks

Harmful substances in the environment are called

For a couple of decades, biologists knew the nucleus contained DNA and proteins. The prevailing opinion was that the genetic material was proteins, and not DNA. The reason for this belief was that proteins are more complex than DNA. This is because:

Another word for "fats", these are made up of a glycerol and three fatty acids.

How do doctors know which blood types can be given to people in need of blood?

What is the term for the breakdown of organic sediment into inorganic phosphorous?