Differentiate between Benign tumour and malignan tumour. Write four differences.

Differentiate between Benign tumour and Malignant tumour.

Differentiate between: BOD and COD (write full form and differentiate)

Define tissue. Differentiate meristematic and permanent tissue. Describe different types of primary meristematic tissue.

Give achemicaltest to differentiate between formaldehyde and acetaldehyde. Also write the chemical equation.

Four defective oranges are accidently mixed with 16 good ones and by looking at them it is not possible to differentiate between them. Three oranges are drawn at random from the lot. Find the probability distribution of X, the number of defective oranges.

Write four functions of liver .