Health, 27.01.2020 00:31 mdlemuslopez
Which part of the respiratory system is a flap of tissue in back of the mouth that covers the trachea to prevent food from entering it?
a.
trachea
b.
diaphragm
c.
lungs
d.
epiglottis
Answers: 3
Health, 22.06.2019 09:30
So i have a lot of answers answered but it says i still need to answer more questions. why is it doing that? how many questions need to be answered?
Answers: 1
Health, 22.06.2019 22:00
During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4
Answers: 1
Which part of the respiratory system is a flap of tissue in back of the mouth that covers the trache...
History, 26.06.2019 20:30
Mathematics, 26.06.2019 20:30
Mathematics, 26.06.2019 20:30
Mathematics, 26.06.2019 20:30
English, 26.06.2019 20:30