The answer is adrenal gland
Hello,
Your brainliest answer would be:
Wood is an insulator.
Plz mark me brainliest!
Hope this helps!
The correct answer from the choices listed above is option A. Adaptations took advantage of the presence of free oxygen in the oceans and atmosphere by the <span>evolution of cellular respiration, which used oxygen to help harvest energy from organic molecules.</span>
