Question

ans th following
first 5

Answer 1

10. oxygen because oxygen is a fresh gas and carbon dioxide is not

11. a. pressure is high in arteries and low in veins because veins carry the blood to heart and arteries bring blood so there is a great pressure.

b.the major cause of high blood pressure is tension.

c.if a person is having high blood pressure he may have a heart attack.

12.a.pulmonary vein

b. pulmonary artery

c.the left ventricle is thicker than the right ventrical because it keeps the blood

13.phloem

14. xylem

Answer 2

10)Oxygen is transported in the blood in two ways: A small amount of O 2 (1.5 percent) is carried in the plasma as a dissolved gas. Most oxygen (98.5 percent) carried in the blood is bound to the protein hemoglobin in red blood cells.
and corbandioxide can't do this because Carbon dioxide molecules aretransported in the blood from bodytissues to the lungs by one of three methods: dissolution directly into the blood, binding to hemoglobin, or carried as a bicarbonate ion. ... Second, carbon dioxide can bind to plasma proteins or can enter red blood cells and bind to hemoglobin..

11)a)The arteries are the large bloodvessels that carry blood from the heart to all the organs and muscles of the body, to give them the energy and oxygen they need. The arteriesmanage the flow of blood by controlling the speed and direction it flows in
B)High blood pressure, also calledhypertension, is dangerous because it makes the heart work harder to pumpblood out to the body and contributes to hardening of the arteries, or atherosclerosis, to stroke, kidney disease, and to heart failure.
c)If you have high blood pressure, this higher pressure puts extra strain on your heart and blood vessels. Over time, this extra strain increases your risk of a heart attack or stroke. High blood pressure can also cause heart and kidney disease, and is closely linked to some forms of dementia.

12) pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart.
B)The pulmonary artery carries blood from the heart to the lungs, where it receives oxygen
c) left ventricle has a thicker muscle wall than the right ventricle. This is because the left ventricle has to pump blood all the way around the body, but the right ventricle only has to pump it to the lungs. The blood in arteries is under higher pressure than blood in the veins.

13)Phloem. Phloem vessels are involved in translocation. Dissolved sugars, produced during photosynthesis, and other soluble food molecules are moved from the leaves to growing tissues (eg the tips of the roots and shoots) and storage tissues (eg in the roots).

14) Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to shoots and leaves, but it also transports nutrients.

15)Abiogenesis, or informally the origin of life, is the natural process by which life arises from non-living matter, such as simple organic compounds. The transition from non-living to living entities was not a single event but a gradual process of increasing complexity.otherwise. Hemolytic transfusion reactions can cause the most serious problems, but these are rare. These reactions can occur when your ABO or Rh blood type and that of the transfused blood do not match. If this happens, your immune system attacks the transfused red blood cells. This can be life-threatening
universal donar is o + and he can only get blood from o+ group



hope this helps u dear....