Diciduous forest are found mainly in the temperate climate zone. why are these forest not found in the tropical or polar zones ?

What was carolus linnaeus' classification system of organisms based on? a.physical characteristics of organisms b.food habits of organisms c.habitat of organisms d.size of organisms

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

Which blood cell spend most of their time in the lymphatic system?