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InterviewSolution
| 1. |
Similarities between cockroach and mantis? |
| Answer» Cockroaches and mantids share a special digestive system structure. Between the foregut and midgut, they have a gizzard-like structure called a proventriculus, and in the Dictyoptera the proventriculus has internal "teeth" that break down solid bits of food before sending them along the alimentary canal. | |