The boundary between the mesosphere and the thermosphere above it is called the mesopause.<span />
<span>A law is a theory that has explained a number of observed phenomena, and it has predicted a number of other phenomena which may as yet be unobserved.
In that sense, a law is a theory that has not yet been proven wrong or given rise to any contradictions.
A theory is just a theory until it has been proven true by experiments and observation</span>
A cellular organelle is a structure in the cell that performs a specific function.
Nucleus - stores cell's DNA; DNA replication occurs here
Ribosome - produce protein; "factories" of the cell
Mitochondria - breaks down food for energy to be used by the cell; "powerhouse" of the cell
Vacuole - store materials such as food, water, sugar, minerals, and waste products
Endoplasmic reticulum - carry materials throughout the cell; "transport system"
Drastic change in pH or temperature because the enzyme reaction may become denatured.
It copies, hope this helps
