Short Term Changes in an Ecosystem: flooding, snow storm, thunderstorm, hurricane, Long Term Changes in an Ecosystem: forest fire, Global Warming, deforestation , extinction, Circadian Rhythms: daily changes, birds singing in the morning, nocturnal, diurnal, Seasonal Changes: dormancy, migration, hibernation, leaves changing colors,

Ilg'orlar ro'yxati

Vizual uslub

Moslamalar

Namunani almashtirish

Tahrirlashni davom ettirish: ?