19. B - mitochondria
20. D - vegetative structure
21. C - inducing a mutation
22. A - phosphates
23. C - fungi
24. A - provides support
25. C - sponges
26. B - opposite charges
27. D - asexual reproduction
28. not sure about this one sorry
29. D - all of the above
30. A - prevents ions and large molecules from passing through the membrane
If your sleeping child eyes is moving back and forth while his eyelids are closed it is likely that he is sleep
natural selection, bc it is the process whereby organisms better adapted to their environment tend to survive and produce more offspring
I Think The answer is a I hope it helps My friend