Answer:
Grey and White Matter.
Explanation:
When looking at an image of trasnverse section of the spinal cord the grey matter is almost butterfly shapped and it has the central canal in the middle. The white matter is surrounding the butterfly shaped, grey matter.
Heat is a form of energy.
<span>Organismele multicelulare sunt organisme care constau în mai multe celule, spre deosebire de organismele unicelulare.</span>
If the environment changes quickly and no individual members of a species are able to survive in the new environment, then the species will become extinct in that environment
