Does human breathe in nitrogen

The changing of water into hydrogen and oxygen gas is an example of a: a) physical change b) chemical change c) nuclear change

How many different shapes of bacteria are there? 1 shape 2 shapes 3 shapes 4 shapes

How do fossil fuels differ from fossils

Most of the ATP made during cellular respiration is produced in which organelle? A) ribosomes B) Krebs cycle C) mitochondria D) Golgi apparatus

You have isolated a microorganism from seawater that contains thylakoid membranes, gas vacuoles, and carboxysomes. It is most likely A. E. coli. B. Caulobacter. C. algae. D. a cyanobacterium. E. an ameba.

Why do you think it is important to cover your mouth when you cough?

The most common molecule in the human body is made of what elements?

An arterial condition in which there is thickening, hardening, and loss of elasticity of the walls of arteries-resulting in decreased blood supply-especially to the lower extremities and cerebrum is known as hardening of the arteries

Which parts of a cell are made of molecules?

Which one of the following statements about the troposphere is true? Select one: a. The troposphere is the atmospheric layer farthest from the earth's surface. b. The tropospheric gases move because of convection currents. c.