31. (M-3) (M 2,5) Tadqiqot ishlarning birida oltita mushukka yorug'lik va qo'ng'iroq chalingandan so'ng oziq, ovqat qutisini ochishga o'rgatishdi. Agar mushukchar 10 soniya ichida idishni ocha olishmasa, qafas yopilib qolar edi. Tajriba natijasi qanday bo'lishi mumkinligiga doir eng to'g'ri fikmi aniqlang. A. Hayvonlarda och qolmaslik uchun qutini tez ochishga doir shartli refleks hosil bo'la boshlaydi B. Mushuklar juda chaqqon jonivorlar, ularga qafas yopilmasidan' avval oldin qutini ochishadi C. Mushuklar 10 soniyani ichida bemalol ovqat qutisini juda tez ocha olishadi D. Mushuklarga yorug'lik va qo'ng'iroq tovushi bilan ta'sir ettirilmasa qutini sekin ochishlari mumkin

What is the climax community in ecological succession? a. The very first organisms to colonize a new habitat. b. A group of organisms competing for the same resources. c. A relatively stable community with a variety of species. d. A community that is undergoing a disturbance.

a. population b. individual c. ecosystem

Which of the following is a level of ecological study? a. community b. ecosystem c. organism d. population e. all of the above

Value: 2 Why might a large-scale environmental change, like climate change, disrupt the balance in an ecosystem? a. It may introduce new species that compete with native species. b. It can cause a shortage of resources for some organisms c. It can lead to a decrease in predator populations.

Which type of succession occurs on bare rock or newly formed sand dunes? a. Secondary succession b. Primary succession c. Pioneer species d. Climax community