Answer: D, all are processes that shape Earth's features. I don't know if this was a choice answer but, hope this helps. :)
Explanation:
The answer is D. The Protista have very little in common with each other besides being unicellular and Eukaryota.
Protista is one of kingdom that consist of any eukaryotic that could not classified as plant, animal or fungi. Since the classification itself based on exclusion, protist group has much less similarity than other group. All protist is unicellular and eukaryote but other than that, they will have many difference in other aspect.
I believe that the answer would be assimilation.
Hope this helps!!
The answer is C. This was
achieved through
gene regulatory networks. The ability of the cells
to segment and differentiate gave the
metazoans a great advantage. This is thought
to have begun in the Cambrian period with complete
bodies existing by the Paleozoic era.
Answer: Respiratory gases(Oxygen)
Explanation:
The essential role of cadio vascular system is to supply blood; containig metabolites (glucose,amino acid, fatty acid and glycerol) and gases expecially Oxygen,needed for combustion of these nutrients(metabolites) in mitochondrial of cells (cellular Respiration) to generate ATPs for biochemical activities of the body.
