Eukaryotic cells all feature a nucleus, and their organelles are enclosed inside membranes.<span> They also have a plasma membrane, which is a layer of phospholipids that surrounds the whole cell, and they feature an internal cytoskeleton</span>
The carbon cycle illustrates how carbon, which is found in all living and once living things, is cycled and recycled from organisms to the soil and back to living things...matter is neither created or destroyed so the carbon we find in us, etc is the same carbon found in the earth since its "birth"
Carrying Capacity. For a given region, carrying capacity is the maximum number of individuals of a given species that an area's resources can sustain indefinitely without significantly depleting or degrading those resources. Reproductive lag time may cause the population to overshoot the carrying capacity temporarily.
It is called Kinetic energy