From the following statements select the wrong one:
Correct answer: A. Prawn has two pairs of antennae
- A. Prawn has two pairs of antennae
- B. Nematocysts are characteristics of the phylum cnidaria
- C. Millepedes have two pairs of appendages in each segment of the body
- D. Animals belonging to phylum porifera are marine and fresh water
Explanation
Prawns have one pair of antennae, one on either side, just below the antennules. They are sensory, excretory and balancing in function. Antennules are attached on either side, below the bases of eye stalks. They are tactile in function. Nematocysts are present in cnidoblasts that act as organs of offence and defence. Millipedes belong to class myriapoda. They are called thousand leggers because of possession of numerous walking legs. Their body is made up of a small head and 40 trunk segments, each with two pairs of jointed legs. Animals belonging to phylum porifera are mostly marine while a few are freshwater.
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About Kingdom Animalia
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
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