1) They are including people.
2) We can`t say about it. Because there is a lot of things, which doesn`t have explored. Whatever plants or animals. We are knowing groups, like mammals, birds, fish and e.t.c.
3) In other ways, like one of them huge, another small. They are having different menu,animals, like tiger, eating another animals, plants eating water with good things.
4) Yes it is, one of them bigger, like elephant, other smaller, like rats.
5) We can`t live without plants and animals because, the are giving to us foor, plants-fruits, like banana tree, animals-meat, like cows or piggies.
6) Carbon dioxide it`s a gas, plants absorbing him and then, giving to us air.
7) Yes we are knowing that, venerin fly catcher, one of them.
8) I don`t know this type of plants, they are leading a sedentary lifestyle.
9) I don`t know this too, dogs maybe.
10) Yes, one of them is Bamboo.