sterile caste meaning in Hindi

Examples

1. The individuals giving up their own reproductive success form a sterile caste of workers within the group.
2. Along with their subfamily, Vespinae, this species demonstrates supportive parental care for offspring, separation of reproductive and sterile castes, and overlapping generations.
3. An example of a species whose sterile caste displays this altruistic behavior is " Myrmecocystus mexicanus ", one of the species of honey ant.
4. In species where queens mated with multiple mates, it was found that these were developed from lineages where sterile castes already evolved, so the multiple mating was secondary.
5. In " On the Origin of Species ", Darwin referred to the existence of sterile castes as the " one special difficulty, which at first appeared to me insuperable, and actually fatal to my theory ".
6. In order to differentiate female workers from female reproductive wasps in " Polistes metricus ", behavior must be studied since they are environment they occupy . " Polistes metricus " is considered to be a eusocial organism, characterized by sterile castes, overlapping generations, and cooperative care for offspring . " Polistes metricus ", like " Polistes dominula " and " Polistes annularis ", differs from many other advanced eusocial insects in that the distinction between reproductive females and non-reproductive females is subtle.