Valves, they are like flaps of muscle that keeps the blood in its place util its ready to be pumped along.
Answer:
OB هخشسؤةةحؤةىشؤحىشؤتىشكنؤىتنؤمشؤىشتؤىسشتؤلااؤ
Colorectal Cancer have these following symptoms or signs that a nurse should consider:1. Abnormality of bowel habits like constipation, diarrhea, and stool narrowing, lasting for more than few days2. Rectal bleeding of bright red blood3. Having blood in the stool and makes it look dark4. Abdominal pain5. Fatigue6. Sudden weight loss
Answer:
b. a single temporal fenestra
Explanation:
Synapsids have a temporary fossa in the lower part of the temporal bone. These reptiles mamiferoides only have a single inferior temporal fenestra.
The synapsids were the first amniots to diversify and appeared in the middle of the Carboniferous. These first synapses were characterized by the presence of a single temporary fenestra behind each orbit, through which the mandibular muscles pass.
The correct answer among the choices provided is option A. Lung capillaries are responsible for exchanging carbon dioxide for oxygen from the air. Blood that comes from the heart gets oxygen from the alveoli. The carbon dioxide in the blood goes into the alveoli at the same time.