1. Tardigrade
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  3. Biology
  4. In the mouth parts of cockroach the galea and lacinia form parts of the ---------------------.

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Q. In the mouth parts of cockroach the galea and lacinia form parts of the ---------------------.

NTA AbhyasNTA Abhyas 2020

Solution:

The Head of the cockroach is triangular and lies anteriorly at proper angles to the longitudinal body axis. It's miles shaped with the aid of the fusion of six segments and suggests first-rate mobility in all directions due to bendy neck. The top pill bears a couple of compound eyes. A pair of thread-like antennae stand up from membranous sockets mendacity in the front of eyes. Antennae have sensory receptors that help in tracking the environment. Anterior quit of the pinnacle bears appendages forming biting and chewing kind of mouthparts. The mouthparts such as a labrum (top lip), a pair of mandibles, a couple of maxillae and a labium (decrease lip). A mean flexible lobe, appearing as the tongue (hypopharynx), lies within the hollow space enclosed by the mouthparts.