Depends on the beetle, but I would most likely say plants.
Its because they may assist in the attachment process. Everything a baby experiences through these senses supplies him/her with a constant stream of information that he/she stores in hi/her brain. As he/she grows and develops he/she will use this information to build and understand the environment.
I think the deficiency of dedicated respiratory and circulatory systems in Planarians does not cause a problem because none of their cells are far removed from the gastrovascular cavity or from the external environment. Planarians are free-living flatworms and form the class Turbellarians in the Phylum Platyhelminthes. Flatworms have three tissue layers, that is the ectoderm, mesoderm, and endoderm.
The study of Escherichia coli (E. coli) led researchers to new experimental designs for studying operons. The experimental design that the scientist should use it to (B) Test the response of E. coli to a variety of chemicals to determine the number of operons that are present.
