Only the air reaching the is available for gas exchange. when air is moved from the atmosphere into the respiratory tract, a portion of it remains in the . this collective space, where there is no exchange of respiratory gases, is referred to as the , and it has an average volum

Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?

According to piaget, children have acquired the cognitive skill of conservation when they're able to a. understand that six ounces of liquid in a jar and six ounces in an elongated tube are equal. b. understand the viewpoint of other people. c. relate objects around them to their own needs. d. realize that the term heavy describes an object one way and the term big describes it another way. it is not b nor c. did this 2 x wrong..

As a result of wildfires, in grasslands. a) tree growth increases b) grass growth increases c) soil quality decreases d) invertebrate variety decreases