Carbon dioxide is a waste product from breathing. which organ or organs of the body, attached to the trachea, push carbon dioxide out of the body? a. liver b. lungs c. kidneys d. skin

Which of the following is an important function of child-directed speech? (a) it captures the infant’s attention and maintains communication. (b) it reduces the occurrence of infantile amnesia for the earliest memories of infancy. (c) it reduces the need for reciprocal interaction between caregivers and children. (d) it assists in prolonging rem sleep in infants.

The load is the pivot point of a lever.

Which of the following processes does the body not use protein to perform? a. repairing muscles b. producing hormones c. making hemoglobin d. creating amino acids