14. Deposits from cigarette smoke and other atmospheric pollutants may interfere with the A) action of cilia in the trachea
B) contraction of the diaphragm
C) warming of air in the nasal cavity
D) secretion of mucus by the alveoli

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.