Question

1) As the body's chemical messengers, _____________________ transfer information and instructions from one set of cells to another.

2) A _______________ is a group of cells that produces and secretes, or gives off, chemicals.
3) Hormones are released into the bloodstream via small tubes called_________________.
4) Hormones find their way through the blood to their ___________________ cells.
5) Each hormone is a differently shaped key that will only fit into the correct __________________ lock.

Answer 1

1) As the body's chemical messengers, hormones transfer information and instructions from one set of cells to another.

2) A gland is a group of cells that produces and secretes, or gives off, chemicals.

3) Hormones are released into the bloodstream via small tubes called duct.

4) Hormones find their way through the blood to their targeted/respective cells.

5) Each hormone is a differently shaped key that will only fit into the correct receptor lock.