plz friends plz plz help me solve the science question plz plz
Answers
Answer:
1.arteries
2. red blood cells
3.capillaries
4.cardiac cycle
5.urea
6. milk solid with sugar
7.urine
8.transpiration
9.blood
10.plasma
11. xylem
12. hemoglobin
Answers :-
1) Arteries
2) Red blood cells
3) Capillaries
4) Heart-Beat
5) Urea
6) Salt
7) Urine
8) Transpiration
9) Blood
10) Plasma
11) Xylem
12) Haemoglobin
Explanation :-
1) The blood from the heart is transported to all parts of the body by the arteries.
Arteries carry oxygenated blood from the heart to all the parts of the body.
2) Haemoglobin is present in red blood cells.
Haemoglobin is a red coloured pigment which carries oxygen and give red colour to the blood.
3) Arteries and veins and joined by a network of capillaries.
Arteries carry oxygenated to the capillaries where the exchange of oxygen and carbon dioxide take place. Then, the capillaries transport deoxygenated blood to the veins.
4) The rhythmic expansion and contraction of the heart is called heart-beat.
Expansion and contraction of heart produces lub-dub sound which is called as heart beat.
5) The main excretory product in human beings is urea.
Urea contains water and excess salts.
6) Sweat contains water and salt.
Excess water and salts are excreted through sweat.
7) Kidney eliminate the waste material in the liquid form called urine.
Kidney filters the blood and eliminates waste material in the form of urine.
8) Water reaches great heights in the trees because of suction pull called as transpiration.
Transpiration is the process by which plants remove excess water through stomata.
9) Circulatory system consist of heart, blood and blood vessels.
Blood vessels consist veins, arteries and capillaries.
10) The fluid part of the blood is called plasma.
About 90% of the blood contains plamsa. Plasma contains 55% water and 45% blood corpuscles ( i.e. RBC , WBC and platelets )
11) In plants water is transported through xylem.
Water and minerals are transported through xylem whereas food is transported through phloem.
12) Red blood cells contains a red coloured pigment called Haemoglobin.
Haemoglobin is a red coloured pigment which carries oxygen and give red colour to the blood.