Answer:
D
Explanation:
It is often like this: cell->tissue->organ->system
The longest day of the year isn't the hottest day of the year because the phenomenon of the hottest weather following the summer solstice by a month or two is called the lag of seasons.
its true............................................true
Pollution or Carbon Dioxide
Answer:
Regulate heat throughout it's body,
Explanation:
Countercurrent Heat Exchange is a normal and varied mechanism in organisms that utilizes parallel pipes of flowing fluid in opposite directions in order to save energy, such as blood flow. For example, a whale's tongue uses this system through the blood flow to the tip of the tongue, where the countercurrent heat exchange system heats up blood returning to the body.