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

( a ) − ( ii ) ; ( b ) − ( iii ) ; ( c ) − ( iv ) ; ( d ) − ( i )

( a ) − ( ii ) ; ( b ) − ( iii ) ; ( c ) − ( i ) ; ( d ) − ( iv )

( a ) − ( iv ) ; ( b ) − ( i ) ; ( c ) − ( iii ) ; ( d ) − ( ii )

( a ) − ( i ) ; ( b ) − ( iv ) ; ( c ) − ( iii ) ; ( d ) − ( ii )

EASY

Earn 100

Which of the following organism is included in the class Hydrozoa?

100% studentsanswered this correctly

Important Questions on Animal Diversity- I (Invertebrate Phyla)

EASY

Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Cnidaria

Metagenesis refers to:

MEDIUM

Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Cnidaria

Study the following statements
A) Corallium rubrum is the precious red stone coral that belongs to Scyphozoa
B) Renette gland is an excretory gland found in round worms
C) Tubifex is an aquatic annelid
D) In chilopods, maxillae are modified into gnathochilarium

Among the above, the incorrect statements are

EASY

Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Cnidaria

Which of the following is correctly matched?
(i) Coelomates

\to

Aschelminthes
(ii) Triploblastic

\to

Sponges
(iii) Radial symmetry

\to

Coelenterates
(iv) Metamerism

\to

Molluscs

EASY

Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Cnidaria

Select the taxon that represents both marine and freshwater species.

MEDIUM

Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Cnidaria

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

EASY

Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Cnidaria

Which one of the following living organisms completely lacks a cell wall?

EASY

Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Cnidaria

In Hydra waste material of food digestion and nitrogenous waste material removed from

MEDIUM

Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Cnidaria

(i) Radial symmetrical
(ii) Diploblastic
(iii) The cellular level of organization
(iv) Digestion is intracellular only
(v) Exhibit two basic body forms called polyp and medusa.
How many points are correct about Obelia?

EASY

Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Cnidaria

The nitrogenous metabolic waste in Hydra is mostly

HARD

Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Cnidaria

Regeneration in Hydra is epimorphosis by archaeocytes.

EASY

Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Cnidaria

Which of the following statement is incorrect about metagenesis?

EASY

Biology>Diversity in the Living World>Animal Diversity- I (Invertebrate Phyla)>Phylum: Cnidaria

In Hydra, egestion of undigested food and excretion of nitrogenous wastes occur through