Match List - I with List - II

List-I List-II

(a) Physalia (i) Pearl oyster

(b) Limulus (ii) Portuguese Man of
War

(c) Ancylostoma (iii) Living fossil

(d) Pinctada (iv) Hookworm

Choose the correct answer from the options given below.

Question

Question

Answer 1

Concept:

The animal kingdom is divided into different phyla based on symmetry, level of organization, presence/absence of coelom, etc.
Kingdom Animalia is divided into 11 different phyla.

Explanation:

Let us see a few organisms and their phyla:

Sl. No	Organism	Commonly known as	Phylum	Image
1	Physalia	Portuguese man-of-war	It belongs to Phylum Cnidaria. The name comes from its resemblance to the warship, the Portuguese man-of-war. These animals are mostly aquatic and have cnidoblasts on their tentacles and body. Cnidoblast provides protection and helps in anchorage and capture of prey.
2	Limulus	King crab	It belongs to Phylum Arthropoda. It is a marine arthropod. It has changed very little compared to its millions of years old ancestors hence, it is called a living fossil.
3	Ancylostoma	Hookworm	It belongs to Phylum Aschelminthes. The body of roundworms is circular in cross-section. They are mostly parasitic and live inside the body of the host.
4	Pinctada	Pearl oyster	It belongs to Phylum Mollusca. It is mostly marine. It makes a shell (from aragonite, and conchiolin) around its body for protection.

So, the correct answer is option 4, a - ii, b - iii, c - iv, d - i.