Which of the following is not true about the distribution of species? a. a species’ native range does not include areas where it was introduced by humans. b. some species have a range they inhabit only for breeding. c. seasonal ranges include areas where species are found for part of the year. d. all the organisms in an ecosystem share distribution patterns.

Answer;

D. All the organisms in an ecosystem share distribution patterns.

Explanation;

Species distribution refers to the way in which a biological taxon is spatially dispersed in a given ecosystem.

Based on the history of species and dispersal capabilities, species can either inhabit large areas or be restricted to small areas. Human activities are continuously altering areas of species distribution, creating and destroying the habitats, establishing corridors and barriers and accidentally or voluntarily moving species to new locations.

Organisms in a given ecosystem do not share distribution pattern as each species is oriented to its own distribution pattern.

organisms that lack symmetry are called asymmetrical and belong to phylum porifera/sponges.

organisms with specialized stinging cells belong to phylum cnidaria. stinging cells are called cnidoblast cells.

cnidarians show two morphological forms : polyp (sessile) and medusa (mobile)

filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.