<span>Too little is known about pre-Archean time, from the origin of Earth to 3.8 billion years ago, to divide that period into units.</span>
I believe it's Preganglionic Neurons
because in parasympathetic the pre-ganglionic neurons begin in the brain stem, and secretes Aceytolcholine as a neurotransmitter. ;)
I'm taking A&P2 this spring so I know haha
The answer is true
Hope it's help u
Sun then trees then from bigger animal to small
Limited resources in an ecosystems would be
Land/territory
<span>Food </span>
<span>Water (in terrestial ecosystems) </span>
<span>Sunlight (mostly for plants) </span>
<span>Nutrition in the soil (again, usually for plants) </span>
