NEET Test Series from KOTA - 10 Papers In MS WORD
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BIOXI04: ANIMAL KINGDOM
332471
The number of gills present in osteichthyes is
1 2 pairs
2 6 pairs
3 4 pairs
4 5 pairs
Explanation:
Osteichthyes have four pairs of gills which are covered by an operculum on each side.
BIOXI04: ANIMAL KINGDOM
332473
Select the taxon that represents both marine and freshwater species but not terrestrial species.
1 Mollusca
2 Echinodermata
3 Amphibia
4 Osteichthyes
Explanation:
Osteichthyes includes both marine and fresh water fishes with bony endoskeleton. Mollusca includes some freshwater and terrestrial form also. Amphibians live in freshwater and terrestrial habitats. All echinoderms are marine.
BIOXI04: ANIMAL KINGDOM
332474
Which of the following statement is incorrect?
1 All vertebrates have a ventral heart
2 All vertebrates have an endoskeleton derived from mesoderm
3 Placoid scales cover the body of sharks and lampreys
4 Skin in fishes is covered with cycloid/ ctenoid scales
Explanation:
Placoid scales cover body of shark only, body of lamprey is devoid of any scales.
BIOXI04: ANIMAL KINGDOM
332475
Which one of the following matching pairs is wrong?
1 Silver fish - Arthopoda
2 Shell fish - Pisces
3 Cuttle fish - Mollusca
4 Starfish - Echinodermata
Explanation:
Shellfish are a group of aquatic animals that belong to either Mollusca, Crustaceans or Echinoderms.
332471
The number of gills present in osteichthyes is
1 2 pairs
2 6 pairs
3 4 pairs
4 5 pairs
Explanation:
Osteichthyes have four pairs of gills which are covered by an operculum on each side.
BIOXI04: ANIMAL KINGDOM
332473
Select the taxon that represents both marine and freshwater species but not terrestrial species.
1 Mollusca
2 Echinodermata
3 Amphibia
4 Osteichthyes
Explanation:
Osteichthyes includes both marine and fresh water fishes with bony endoskeleton. Mollusca includes some freshwater and terrestrial form also. Amphibians live in freshwater and terrestrial habitats. All echinoderms are marine.
BIOXI04: ANIMAL KINGDOM
332474
Which of the following statement is incorrect?
1 All vertebrates have a ventral heart
2 All vertebrates have an endoskeleton derived from mesoderm
3 Placoid scales cover the body of sharks and lampreys
4 Skin in fishes is covered with cycloid/ ctenoid scales
Explanation:
Placoid scales cover body of shark only, body of lamprey is devoid of any scales.
BIOXI04: ANIMAL KINGDOM
332475
Which one of the following matching pairs is wrong?
1 Silver fish - Arthopoda
2 Shell fish - Pisces
3 Cuttle fish - Mollusca
4 Starfish - Echinodermata
Explanation:
Shellfish are a group of aquatic animals that belong to either Mollusca, Crustaceans or Echinoderms.
332471
The number of gills present in osteichthyes is
1 2 pairs
2 6 pairs
3 4 pairs
4 5 pairs
Explanation:
Osteichthyes have four pairs of gills which are covered by an operculum on each side.
BIOXI04: ANIMAL KINGDOM
332473
Select the taxon that represents both marine and freshwater species but not terrestrial species.
1 Mollusca
2 Echinodermata
3 Amphibia
4 Osteichthyes
Explanation:
Osteichthyes includes both marine and fresh water fishes with bony endoskeleton. Mollusca includes some freshwater and terrestrial form also. Amphibians live in freshwater and terrestrial habitats. All echinoderms are marine.
BIOXI04: ANIMAL KINGDOM
332474
Which of the following statement is incorrect?
1 All vertebrates have a ventral heart
2 All vertebrates have an endoskeleton derived from mesoderm
3 Placoid scales cover the body of sharks and lampreys
4 Skin in fishes is covered with cycloid/ ctenoid scales
Explanation:
Placoid scales cover body of shark only, body of lamprey is devoid of any scales.
BIOXI04: ANIMAL KINGDOM
332475
Which one of the following matching pairs is wrong?
1 Silver fish - Arthopoda
2 Shell fish - Pisces
3 Cuttle fish - Mollusca
4 Starfish - Echinodermata
Explanation:
Shellfish are a group of aquatic animals that belong to either Mollusca, Crustaceans or Echinoderms.
332471
The number of gills present in osteichthyes is
1 2 pairs
2 6 pairs
3 4 pairs
4 5 pairs
Explanation:
Osteichthyes have four pairs of gills which are covered by an operculum on each side.
BIOXI04: ANIMAL KINGDOM
332473
Select the taxon that represents both marine and freshwater species but not terrestrial species.
1 Mollusca
2 Echinodermata
3 Amphibia
4 Osteichthyes
Explanation:
Osteichthyes includes both marine and fresh water fishes with bony endoskeleton. Mollusca includes some freshwater and terrestrial form also. Amphibians live in freshwater and terrestrial habitats. All echinoderms are marine.
BIOXI04: ANIMAL KINGDOM
332474
Which of the following statement is incorrect?
1 All vertebrates have a ventral heart
2 All vertebrates have an endoskeleton derived from mesoderm
3 Placoid scales cover the body of sharks and lampreys
4 Skin in fishes is covered with cycloid/ ctenoid scales
Explanation:
Placoid scales cover body of shark only, body of lamprey is devoid of any scales.
BIOXI04: ANIMAL KINGDOM
332475
Which one of the following matching pairs is wrong?
1 Silver fish - Arthopoda
2 Shell fish - Pisces
3 Cuttle fish - Mollusca
4 Starfish - Echinodermata
Explanation:
Shellfish are a group of aquatic animals that belong to either Mollusca, Crustaceans or Echinoderms.
