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biology click to hear : biology

The scientific study of living organisms (humans, animals and plants) from the point of view of their structure and how they function and reproduce.
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male female death blood factor negative blood factor positive birth

male click to hear : male

Symbol denoting that a being has male reproductive organs.

female click to hear : female

Symbol denoting that a being has female reproductive organs.

death click to hear : death

Symbol placed before a date denoting a person’s year of death.

blood factor negative click to hear : blood factor negative

Individuals not carrying the Rh molecule (antigen) are Rh negative; the Rh factor plays an important role in pregnancy (the parents’ factors must be compatible).

blood factor positive click to hear : blood factor positive

Individuals are Rh positive when their red blood cells carry an Rh molecule (antigen); the Rh factor is positive in about 85% of the population.

birth click to hear : birth

Symbol placed before a date denoting a person’s year of birth.