Biology, 22.11.2019 21:31, kalebbenton15
Asthma narrows airways to the lungs and in the lungs by contraction of muscles around the air passages, swelling of the airway lining, and build-up of excessive mucus. because of this, asthma makes both the and systems work harder to deliver oxygen to the cells throughout the body.
a) respiratory; nervous
b) respiratory; digestive
c) respiratory; circulatory
Answers: 1
Biology, 22.06.2019 05:00, joelpimentel
Cedric has a low fever and minor aches. yesterday, he went to the doctor for his booster shot and receive the flu shot. which best explains why he has this reaction?
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Biology, 22.06.2019 13:30, laylay1734
How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.
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