These are thick blood vessel which transport blood from heart to all parts of the body.
ii. red blood.
Red blood cells(RBC) contain a red pigment called hemoglobin. Hemoglobin bind with oxygen and transports it to all the parts of the body and ultimately to all the cells.
Arteries and veins are joined by a network of capillaries.
One complete contraction and relaxation of the heart is called a heart-beat. The usual heart beat rate at rest is 72 times /minute.)
Urea is the main excretory product in human beings. The urine consists of 95% water and 2.5% urea
Sweat contain water and salts.
An adult human being normally passes about 1–1.8 L of urine in 24 hours, and the urine consists of 95% water, 2.5 % urea and 2.5% other waste products.
The evaporation of water from the leaves of the plants is called transpiration.
Rate this question :
Fill in the blankNCERT - Exemplar Science
What are the compNCERT Science
Fill in the blankNCERT Science
What will happenNCERT Science
(a) Name the onlyNCERT - Exemplar Science
The absorption ofNCERT - Exemplar Science
Observe Figure 11NCERT - Exemplar Science
Name the organ whNCERT - Exemplar Science
What is the speciNCERT - Exemplar Science
While learning toNCERT - Exemplar Science