Nitrogen compounds are often used as fertilizers to increase plant growth. sometimes there is much more nitrogen than plants need. what happens to most of this excess nitrogen

Natural selection is

A scientist asked a question that was based on an observation. Which is the next step the scientist should take? The scientist should form a hypothesis and design an experiment. The scientist should collect data and organize it into tables.

Why is the fourth side of an occlusive dressing left open on a sucking chest wound, particularly if tension pneumothorax develops?

Beowulf was written in AD 838. O True O False

Which of the following is an autotroph A-dodder B-sunflower C-fungi D-algae

Which change shows a tenfold increase in concentration of H + ions?

Which valve prevents backflow into the right atrium?

The biomolecule described is a

Chemical reactions in cells are faster than the same reactions outside cells. True False

What are WBCs and what do they create to fight off infections?