Umm, It could be 100% since when the consumer eats the producer it eats all of it.
Because sedements such as dirt or sand fall on the bones pile up and harden
Answer
Why do we give of Co2 and trees take it in, and we breath in trees give it off
Explanation:
pretty cool we give off what they need and they give off what we need.
Answer:
I'm not sure about 13 and 19.
13. Traits?
14. Hagfish
15. No, it doesn't have jaws.
16. Mammary glands.
17. Jaws and lungs.
18. Lizard, bird, cow, lion.
19. The bird?
20. Claws/nails, lungs, and jaws.
Also, this is a cladogram, in case you needed the info. :)