Many animals such as deer, lions, antelope, and wasps live or travel in groups. this is an example of

The group of animals that group or live together are called analogies.  Analogies are structures that result from convergent evolution - species from different evolutionary branches = no shared ancestry similar appearance examples - wings of bees and bats, Australian mole an North American mole - both look similar, they occupy the same niche. 

hello which   of the following there is nothing!

characterization of nanoparticles is a critical step in nanomaterial production as it provides information of dimension, morphology, surface charge, distribution and degree of surface functionalization.