Cultural practices contributes the most to environmental pollution because <span>by making a fire produces the smoke which pollutes the air , that how culture practices contribute to air pollution.</span>
A stem cell is an extraordinary, early stage, unspecified cell that has the potential to develop into a number of specialized cell types.
there important because they can replace cells that have been lost or damaged
There would need to be several more tanks of fish
The proteins that bind to signaling<span> molecules and initiate a physiological response are also referred to as receptors.
</span>Cell-to-cell communication relies upon the adhesive molecules integrins. Integrins allow cells to maintain contact with one another.<span> Integrins are mechanical links and relay signals both to and from cells.</span>
The first known pandemic in A.D. 542, struck which parts of the world?
Australia
Middle East
North America
South America
Asia
North Africa
Europe
