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Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th
Angioplasty. One form is called balloon angioplasty, shown here. A balloon catheter is threaded into
Diphtheria. The bacteria that cause this disease, called Corynebacterium diphtheriae, proliferate in
Instruct recipient on stages of feeling cold. Tell the recipient to let you know right away if cold ...
The synapse and synaptic transmission. (a) A thin cleft, called the synapse, separates one cell from
Different forms of a gene are called alleles