An ecosystem requires 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 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 figuring out exactly what words fit in the blanks

guys!