Помогите пожалуйста надо сделать номер 7 (Текст вверху) Знатоки не проходите мимо

1.Ecology is a science. 2.Ecology studies how plants, animals and human beings live together  and influence each other. 3.A natural environment is  a science of influence  the growth  of living and the way they develop. 4.Ecology teaches us  how to survive in the modern world. 5.Ecologists collect information about the number of living things in different areas,their size and behaviour.