When an invertebrate reaches the stage, it most likely stops growing and can begin reproduction. beginning growth adult death

adult

Invertebrates are the animals that do not possess a vertebral column. The examples of invertebrates includes arthropods, annelids, cnidarians and mollusks. Invertebrates are the largest class of organisms. They consists of three common parts called as head, thorax and abdomen. The structure restricts any change in the size or length after reaching the adult stage.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: