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describes a condition that is present at birth.
a biological classification group (taxon) that is divided into families.
process whereby excess amino acids are broken down in the liver to form urea.
allergic reaction to certain allergens such as pollen. It causes sneezing, a runny nose and...
animals with two cellular body wall layers: the ectoderm and endoderm.
large blind-ending sac forming the first part of the mammalian large intestine, to which the...