an ecosystem requires __________different plants and animals to be healthy

most of the world's things live in _________

_________ things in an ecosystem rely on each other


if u can answer ANY then answer this with the one you can answer

if you can answer all of them then THANK YOU

I know a LOT about this topic but the top one seems to have a weird grammar issue that I can't understand- it needs a specific work and IDK what


the second one also has MANY possible answers

so does the third


but I need help figuring out exactly what words fit in the blanks


thanks guys!