Do all specimen have the same number of chromosomes

each cell normally contains 23 pairs of chromosomes, for a total of 46 and they look the same in both males and females but the sex chromosomes look different

Explanation:

there's the proffessional site that will you.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs