Hello! The correct answer would be D. Cnidarians. :)
-Cheerio, and have a nice day!
I knew this at one point but I forgot it
Pioneer species are found in area's undergoing secondary succession. For example ecosystems being established by: reducing a fire, deforestation; which quickly colonize open spaces supported by vegetation.
Cell type – prokaryotic or eukaryoticcell structure – cell wallnutrition – autotrophic or heterotrophicbody type – unicellular or multicellular
The shock from loss of blood volume which is large-scale, or shock after sever vomiting or diarrhea.
