Answer:
Mandibles (lower jaw) and maxillae (upper jaw)
Two body sections (head and trunk)
One pair of antennae on the head
Explanation:
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Providing long-term control over the body's internal conditions
Keeping conditions within a normal range
Adjusting the "set point" for body temperature based upon level of activity
It is the heart and lungs of course
It affects it by the warm waters in the gulf stream. Making the temperature up near Great Britain and Ireland Portugal etc. Much more mild then it would be per say in Eastern Canada. It's mainly affected by the Gulf Stream having it's waters flow upwards towards the countries listed.