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B

Binary fission

the replication of bacteria

Biological vectors

the organism undergoes part of its lifecycle inside the host

Blood brain barrier

a semipermeable membrane that keeps circulating blood separate from cerebrospinal fluid and the brain


Blood plasma

fluid surrounding the blood cells and transported by the blood-vascular system


Bolus

a ball of chewed food bound together with saliva that is formed in the mouth by the action of the tongue


Brachycephalic

having a short, broad skull, e.g. boxers, bulldogs, pugs, Persian cats, lionhead rabbits. These animals tend to have overlong soft palates, excessive soft tissue in their oral cavity and pharynx, smaller tracheal diameters than expected, and narrow nares.


Bradycardia

a slower than normal heart rate


Bradypnoea

a slower than normal respiratory rate


Breathing


Buffer

a substance which is able to resist change in the pH of a solution so that the pH remains constant



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