Quick Answer. Most wool comes from sheep, although some wool is harvested from goats, muskoxen, rabbits and certain camelid species. Wool produces a unique textile with qualities that cannot be found in fur, such as its crimped texture, elasticity and tendency to grow in clusters for easy harvesting. Continue Reading.
1 This is due to an increase in the number of particles that have the minimum energy required. The reaction rate decreases with a decrease in temperature.  Catalysts can lower the activation energy and increase the reaction rate without being consumed in the reaction.
1 Enzymes lower the activation energy of chemical reactions. 2 Enzymes are consumed during chemical reactions. 3 Enzymes have specific targets. 4 Factors such as temperature and pH can effect enzyme activity.