Cells of different species, when observed in nutrient solutions, are seen to divide varying numbers of times, with cells of the most long-lived species dividing more times than the cells of short-lived species. the total number of divisions for any given species is sometimes referred to as

the Hayflick limit

Explanation:

The Hayflick limit denotes the number of times the cells divide till the cell division stops.

Cell division depends on the length of the telomeres which are at the end of each chromosome. As cells divide the telomeres keep shortening, once the telomere length reaches a critical length the cells stop dividing.

A telomere is located at the end of each chromosome where there are repetitive nucleotide sequences.

earlier philosophers whose work influenced the enlightenment included bacon, descartes, locke, and spinoza. the major figures of the enlightenment included beccaria, diderot, hume, kant, montesquieu, rousseau, adam smith, and voltaire. it spread the ideas of the enlightenment across europe and beyond.

the following men who did not in the unification of italy were.

a) giuseppe mazzini

c) alexander ll

the other two men were camilo cavour and giuseppe garibaldi they the unification of italy by yielding territories in the italian unification. in 1861 italy was declared a united-nation state under the sardinian king victor immanuel ll.