Sometimes teachers don't know everything. Read here about this famous scientest discoveries of parotin glan, and its effect.
http://en.wikipedia.org/wiki/John_Leonora
4 is an outdated answer, but we know now the salivary glands (parotids) do secrete a hormone, which hardens teeth enamel.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.
which gland does not secrete a hormome?
1.pituatry gland
2.thyroid gland
3.sex gland
4.salivary gland
is it 4
1 answer
1 answer