262300 Match the following related to caudal fins fishes

Explanation:

B

	Type	Charater	Example
:---	---:	:---	---:
(A)	Homocercal	symmetrical externally and asymmetrical internally	r. Catla
(B)	Diphycercal	symmetrical both externally and internally	s. Latimeria
(C)	Heterocercal	asymmetrical both externally and internally	p. Shark
(D)	Hypocercal	vertebral column extends into the larger ventral lobe	q. Flying fish

922. Which of the following option is correct?

(a)	Osteichthyes	4 pair of gill slits covered by operculum gills
(b)	Chondrichthyes	6-15 pairs of slits
(c)	Arthropoda	Metamerism and excretion by nephridia
(d)	Platyhelminthes	Bilateral symmetry \	coelomate e.g., Taenia and Fasciola

Ans. a
Exp. A
Osteichthyes- Osteichthyes is a class having bony fishes. These fishes have 4 pairs of gill slits covered by operculum gills.

262301 Statement (S) : Marine lampreys migrate to rivers for spawning.
Reason (R) : Marine lampreys return to sea water after spawning

262302 One of the world's most poisonous fish toxins is released by:

262303 This is also known as flying fish:

262304 This is not a freshwater fish:

262300 Match the following related to caudal fins fishes

Explanation:

B

	Type	Charater	Example
:---	---:	:---	---:
(A)	Homocercal	symmetrical externally and asymmetrical internally	r. Catla
(B)	Diphycercal	symmetrical both externally and internally	s. Latimeria
(C)	Heterocercal	asymmetrical both externally and internally	p. Shark
(D)	Hypocercal	vertebral column extends into the larger ventral lobe	q. Flying fish

922. Which of the following option is correct?

(a)	Osteichthyes	4 pair of gill slits covered by operculum gills
(b)	Chondrichthyes	6-15 pairs of slits
(c)	Arthropoda	Metamerism and excretion by nephridia
(d)	Platyhelminthes	Bilateral symmetry \	coelomate e.g., Taenia and Fasciola

Ans. a
Exp. A
Osteichthyes- Osteichthyes is a class having bony fishes. These fishes have 4 pairs of gill slits covered by operculum gills.

262301 Statement (S) : Marine lampreys migrate to rivers for spawning.
Reason (R) : Marine lampreys return to sea water after spawning

262302 One of the world's most poisonous fish toxins is released by:

262303 This is also known as flying fish:

262304 This is not a freshwater fish:

262300 Match the following related to caudal fins fishes

Explanation:

B

	Type	Charater	Example
:---	---:	:---	---:
(A)	Homocercal	symmetrical externally and asymmetrical internally	r. Catla
(B)	Diphycercal	symmetrical both externally and internally	s. Latimeria
(C)	Heterocercal	asymmetrical both externally and internally	p. Shark
(D)	Hypocercal	vertebral column extends into the larger ventral lobe	q. Flying fish

922. Which of the following option is correct?

(a)	Osteichthyes	4 pair of gill slits covered by operculum gills
(b)	Chondrichthyes	6-15 pairs of slits
(c)	Arthropoda	Metamerism and excretion by nephridia
(d)	Platyhelminthes	Bilateral symmetry \	coelomate e.g., Taenia and Fasciola

Ans. a
Exp. A
Osteichthyes- Osteichthyes is a class having bony fishes. These fishes have 4 pairs of gill slits covered by operculum gills.

262301 Statement (S) : Marine lampreys migrate to rivers for spawning.
Reason (R) : Marine lampreys return to sea water after spawning

262302 One of the world's most poisonous fish toxins is released by:

262303 This is also known as flying fish:

262304 This is not a freshwater fish:

262300 Match the following related to caudal fins fishes

Explanation:

B

	Type	Charater	Example
:---	---:	:---	---:
(A)	Homocercal	symmetrical externally and asymmetrical internally	r. Catla
(B)	Diphycercal	symmetrical both externally and internally	s. Latimeria
(C)	Heterocercal	asymmetrical both externally and internally	p. Shark
(D)	Hypocercal	vertebral column extends into the larger ventral lobe	q. Flying fish

922. Which of the following option is correct?

(a)	Osteichthyes	4 pair of gill slits covered by operculum gills
(b)	Chondrichthyes	6-15 pairs of slits
(c)	Arthropoda	Metamerism and excretion by nephridia
(d)	Platyhelminthes	Bilateral symmetry \	coelomate e.g., Taenia and Fasciola

Ans. a
Exp. A
Osteichthyes- Osteichthyes is a class having bony fishes. These fishes have 4 pairs of gill slits covered by operculum gills.

262301 Statement (S) : Marine lampreys migrate to rivers for spawning.
Reason (R) : Marine lampreys return to sea water after spawning

262302 One of the world's most poisonous fish toxins is released by:

262303 This is also known as flying fish:

262304 This is not a freshwater fish:

262300 Match the following related to caudal fins fishes

Explanation:

B

	Type	Charater	Example
:---	---:	:---	---:
(A)	Homocercal	symmetrical externally and asymmetrical internally	r. Catla
(B)	Diphycercal	symmetrical both externally and internally	s. Latimeria
(C)	Heterocercal	asymmetrical both externally and internally	p. Shark
(D)	Hypocercal	vertebral column extends into the larger ventral lobe	q. Flying fish

922. Which of the following option is correct?

(a)	Osteichthyes	4 pair of gill slits covered by operculum gills
(b)	Chondrichthyes	6-15 pairs of slits
(c)	Arthropoda	Metamerism and excretion by nephridia
(d)	Platyhelminthes	Bilateral symmetry \	coelomate e.g., Taenia and Fasciola

Ans. a
Exp. A
Osteichthyes- Osteichthyes is a class having bony fishes. These fishes have 4 pairs of gill slits covered by operculum gills.

262301 Statement (S) : Marine lampreys migrate to rivers for spawning.
Reason (R) : Marine lampreys return to sea water after spawning

262302 One of the world's most poisonous fish toxins is released by:

262303 This is also known as flying fish:

262304 This is not a freshwater fish: