Answer:The producers, who manufacture their own food through photosynthesis or chemo synthesis, are at the bottom of the pyramid. The second level is made up of herbivores, or principal consumers. In the following portions of the pyramid, secondary and tertiary consumers, omnivores and carnivores, are found.
Explanation:
<h2>it carries oxygen from the lungs to rest of the body.</h2><h2>This is a fast function and i hope it helps...</h2>
It’s the letter C.................
B)Facilitated diffusion is a form of active transport. Regular diffusion is a form of passive transport.