Answer:
it's called the threshold potential.
Explanation:
it triggers the nerve impulse, or action potential
The answer to this question is letter C. <span>The organism evolved during identification.
</span>A scientist has correctly gone through all the possible steps in a dichotomous key, but has not identified an insect. He was not able to identify the insect because t<span>he organism evolved during identification.
</span>
Choices to this question are:
A) The scientist must have made a mistake.
B) The insect might be an unknown variation or a new species.
C) The organism evolved during identification.
D) The dichotomous key had to many questions.
The correct answer is B) trachea. Trachea is the segment that connects lungs.
Answer:
Explanation:
well the process the body uses to cool itself down is called homeostasis. Which basically means that your body is trying to keep everything even with itself. One mechanism that the body uses is to sweat. When your body is too hot, you will sweat, cause a cooling sensation once it starts to dry. Another mechanism the body uses is to use a process called vasoconstriction. Which involves blood vessels, because they will constrict blood – which allows less blood to flow through the skin and conserve the core body temperature.