This part of the experiment serves as basis of comparison; the one variable being tested has been omitted Experimental group.This part of the experiment shows the effect of the one variable being tested.Independent variable.This variable is an experiment is the one being deliberately changed by the scientist.
C. Temperature and pH can affect how enzymes work.
Rhinitis is an allergic condition characterized by inflammation in the mucus membrane lining of the nose. The anti-histamine nasal sprays controls the symptoms of allergy but it has rebound effect which means that though the sprays works well in controlling the disease, it still causes inflammation and damage to the mucus membrane lining of the nose that may lead to nausea and bleeding of nose.
Arwin in 1856 proved that all pigeon breeds do originate from the Rock Dove and through a process of regression you can recreate the Rock Dove, the ancestor of all pigeon breeds. Hopefully that helped