Question

Question 47 (1 point) Which of the following characteristics do Crustacea and Hexapoda have in common? OA) They have completely abandoned gills for the more efficient tracheal system. OB) They have three pairs of walking legs. OC) Their head and thorax are fused into a cephalothorax. D) They have at least one pair of antennae, mandibles, and maxilla on their head. E) They have a similar number of marine, terrestrial, and freshwater species.

Answer 1

Ans. (C) Their head and thorax fused into a cephalothorax.

Common characteristics on crustacea and hexapoda have found cephalothorax where comprising the head and the thorax fused together on arthropods as distinct from the behind abdomen.