5 lines essay on Teachers'day

Write an essay on the respiratory system of a human being.

Write an essay on chromosomal aberrations, giving their cytological and genetic effects.

The ages in years of 10 teachers of a school are:32, 41, 28, 54, 35, 26, 23, 33, 38, 40(i) What is the age of the oldest teacher and that of the youngest teacher?(ii) What is the range of the ages of the teachers?(iii) What is the mean age of these teachers?

The ages in years of 10 teachers of a school are: 32, 41, 28, 54, 35, 26, 23, 33, 38, 40 (i) What is the age of the oldest teacher and that of the youngest teacher? (ii) What is the range of the ages of the teachers? (iii) What is the mean age of these teachers?

Write an essay on abiotic factors.

Write an essay on 'temperature as an ecofactor'.

During his college days, Panchanan Maheshwari was inspired by an American missionary teacher.

Write an essay on the composition of blood.

There are six teachers. Out of them two are primary teacher, two are middle teachers, and two are secondary teachers. They are to stand in a row, so as the primary teachers, middle teacher, and secondary teachers are always in a set. Find the number of ways in which they can do so.