Нужно знать основы экологии...понимать как деятельность человека влияет на виды, популяции, природу в целом. Нужно делать вычисления численности особей в популяции (волны жизни). Следить за балансом...Если например численность комаров, разносящих болезни, увеличилось, нужно с этим бороться...Если хищников стало слишком много и они истребляют всех зайцев или кроликов это тоже нужно отрегулировать и т.д.
1.i am betty.i am twelve.i am in fifth form.i have a lot of interesting subjects at school. 2.i am from dmitrov.it`s a small town in russia.i am in sixth form.at school we study english and french. 3.are you in a fourth form? - no,i`m not.i`m in fifth form. 4. a school year in russia starts on a first of september. 5.do you enjoy p.e,? 6.can you gather mushrooms in summer? 7.when do you go to a disco? 8.you can see different toys there. 9.do you play different games at home? 10.do you go to a stadium after school?
1. i am betty. i am twelve. i am in the fifth from. i have a lot of interesting subjects at school.2. i am from dmitrov. it's a small town in russia. i am in the sixth form. at school we study english and french.3. are you in the fourth form? — no, i'm not. i'm in the fifth form.4. a school year in russia starts on the first of september.5. do you enjoy p.e.? 6. can you gather mushrooms in summer? 7. when do you go to the disco? 8. you can see different toys there.9. do you play different games at home? 10. do you go to a stadium after school?
Как-то так думаю...сама писала