living environment(humans phiscology)
posted by George wang .
which gland does not secrete a hormome?
is it 4
Sometimes teachers don't know everything. Read here about this famous scientest discoveries of parotin glan, and its effect.
4 is an outdated answer, but we know now the salivary glands (parotids) do secrete a hormone, which hardens teeth enamel.
4 is the best answer, but it is wrong. However, never argue with a teacher.