1. in quiet breathing,
(a) inspiration and expiration involve muscular contractions
(b) inspiration is passive and expiration involves muscular contractions
(c) inspiration involves muscular contractions and expiration is passive
(d) inspiration and expiration are both passive processes
(e) none of the answers are correct
2. when the diaphragm and external intercostal muscles contract;
(a) expiration occurs
(b) intrapulmonary pressure increases
(c) intrapleural pressure decreases
(d) the volume of the lungs decreases
(e) all of the answers are correct

this is a good question! i'll do some research and come back when i have the answer!

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.

measuring physical properties lab reportinstructions: in the physical properties lab, you will test the physical properties of different building materials in order to pick the appropriate materials for a new home in tiny world. record your observations and test measurements in the lab report below. youwill submit your completed report.name and title: lyric lawton, mr.herbert, 10/13/17, physical properties lab. objective(s): i need to parvus build his house out of the right material, so he will stay cool in the mountains.hypothesis: if we use wood to build the roof of the house, then the temperature inside the house will remain cooler.if we use clay brick to build the walls and floors of the house, then the temperature inside the house will remain cooler.if we use aluminium to bring electricity into the home, then it will allow electricity to flow into the home at a faster rate.if we use iron to construct the latches on the windows and doors, then the magnetism will keep the latches secure.