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The lung consists of one cell thick bronchioles, which feed into round structures called alveoli, which are round in shape and also one cell thick. The bronchioles and...

No, they are not the same (although they do both involve the respiratory system!).

The key differences:Breathing is the process of moving air in and out of the lungs - like when you take a bre...

Primary - The sequence of amino acids in the Protein, defined by the DNA sequence coding for the protein. 

Secondary - Any folding or coiling within the protein which are stabilised by hy...

B-Lymphocytes remain in the bone marrow until they mature and then spread throughout the body, concentrating in the lymph nodes and the spleen.They express a specific intrinsic protein called a B-cell rec...

Don't panic! This is a thought that goes through every student who does IB or A Level Biology, and the answer is that there are an endless number of techniques and tricks that can help every different ...