As an impulse travels down an axon,

a chemical signal is released

a charge reversal occurs

electrons are transported

the signal stops

What is unique about the members of the group of fungi to which penicillium notatum belongs? they are not important for medicine. they are not made up of hyphae. they are used in fermentation. they lost the reproductive phase.

How did the miller-urey experiment impact the way scientists think about the origins of life? use what you know about the miller-urey experiments to discuss the factors needed for life to arise, and speculate on whether life could arise on another planet.

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from