Question

Which arthropod you have studied is called 'living fossil'? Name its respiratory organs?

Answer 1

Arthropod. An arthropod (/ˈɑːrθrəpɒd/, from Greek ἄρθρον arthron, "joint" and πούς pous, "foot") is an invertebrateanimal having an exoskeleton (external skeleton), a segmented body, and paired jointed appendages. Arthropods form the phylum Euarthropoda, which includes insects, arachnids, myriapods, and crustaceans.

Answer 2

Arthropod named Limulus is the one which is called living fossil.

The respiratory organs that the arthropods possesses are : book gills, book lungs, gills and the tracheal system.

Some features of the Arthropod phylum are :

1. The members that belongs to this phylum have appendages that are of jointed type.

2. Also chitin kind of exoskeleton covers their body.

3. Open type of system of circulation is present in them.

4. Special structures called malpighian tubules are found in them through which they excrete out waste substances.

More about Arthropods :

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Major non-chordate Arthropods :

https://brainly.in/question/12872998