What is the main role of a hormone? to provide energy to the cells all over the body after release into the circulation to carry information to cells in the body at different places from where it's released into the blood to carry respiratory gases in the blood to go out of and then into the nerve axon as part of the wave of excitation sending messages from one place to another no incorrect answers

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72