Which statement best explains how arteries and veins help maintain homeostasis? (1 point) A:The carbon dioxide exhaled by the lungs is carried by the veins and arteries to the different parts of the body.
B:
Arteries carry oxygen-rich blood to the different parts of the body, and veins carry carbon dioxide-rich blood to the heart.
C:
Veins carry oxygen-rich blood to the different parts of the body, and arteries carry carbon dioxide-rich blood to the heart.
D:
The oxygen inhaled during respiration is carried around the body through blood by veins and arteries to maintain homeostasis.

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A74-year-old woman, who has been followed for the past 25 years for chronic obstructive pulmonary disease comes to the ed complaining of 48 hours of temperature to 38.6 c and worsening shortness of breath. she has a chronic productive cough, which has become more copious. on physical examination, she has rhonchi and increased fremitus in the posterior mid-lung field. a gram's stain reveals many epithelial cells and multiple gram-positive and gram-negative organisms; no neutrophils are seen. which of the following is the most likely organism causing the symptoms? - escherichia coli- haemophilus influenzae- klebsiella pneumoniae- mycobacterium tuberculosis- mycoplasma pneumoniae