332713
Which of the following animals do not undergo metamorphosis?
1 Moth
2 Tunicate
3 Earthworm
4 Starfish
Explanation:
Metamorphosis is transformation of larva into adult. Animal that perform metamorphosis are said to have indirect development. In earthworm there is no larval stages, development is direct and metamorphosis is direct.
NEET - 2018
BIOXI04: ANIMAL KINGDOM
332714
Which of the following is not a vertebrate?
1 Lamprey
2 Lancelet
3 Shark
4 Platypus
Explanation:
Lancelet does not have a vertebral column but has a notochord. However, it shows many affinities with the vertebrates. Lamprey, shark and Platypus are vertebrates that have a vertebral column.
BIOXI04: ANIMAL KINGDOM
332715
Mark the incorrect statement for cephalochordates
1 Notochord is replaced by a cartilaginous or bony vertebral column in the adults
2 They are exclusively marine animals
3 They are often referred to as protochordates
4 In them notochord extends from head to tail
Explanation:
In Cephalochordata, notochord extends upto anterior end of the body.
BIOXI04: ANIMAL KINGDOM
332716
Retrogressive metamorphosis is found in
1 Amphibia
2 Urochordata
3 Fishes
4 Cephalochordate
Explanation:
In retrogressive metamorphosis the larva possesses advanced characters which are lost during the development and the adult is either sedentary or degenerated with primitive characters. Urochordate adults, being sedentary, show degenerative characters while the free-swimming tadpole larva shows advanced chordate characters which are lost during metamorphosis.
332713
Which of the following animals do not undergo metamorphosis?
1 Moth
2 Tunicate
3 Earthworm
4 Starfish
Explanation:
Metamorphosis is transformation of larva into adult. Animal that perform metamorphosis are said to have indirect development. In earthworm there is no larval stages, development is direct and metamorphosis is direct.
NEET - 2018
BIOXI04: ANIMAL KINGDOM
332714
Which of the following is not a vertebrate?
1 Lamprey
2 Lancelet
3 Shark
4 Platypus
Explanation:
Lancelet does not have a vertebral column but has a notochord. However, it shows many affinities with the vertebrates. Lamprey, shark and Platypus are vertebrates that have a vertebral column.
BIOXI04: ANIMAL KINGDOM
332715
Mark the incorrect statement for cephalochordates
1 Notochord is replaced by a cartilaginous or bony vertebral column in the adults
2 They are exclusively marine animals
3 They are often referred to as protochordates
4 In them notochord extends from head to tail
Explanation:
In Cephalochordata, notochord extends upto anterior end of the body.
BIOXI04: ANIMAL KINGDOM
332716
Retrogressive metamorphosis is found in
1 Amphibia
2 Urochordata
3 Fishes
4 Cephalochordate
Explanation:
In retrogressive metamorphosis the larva possesses advanced characters which are lost during the development and the adult is either sedentary or degenerated with primitive characters. Urochordate adults, being sedentary, show degenerative characters while the free-swimming tadpole larva shows advanced chordate characters which are lost during metamorphosis.
332713
Which of the following animals do not undergo metamorphosis?
1 Moth
2 Tunicate
3 Earthworm
4 Starfish
Explanation:
Metamorphosis is transformation of larva into adult. Animal that perform metamorphosis are said to have indirect development. In earthworm there is no larval stages, development is direct and metamorphosis is direct.
NEET - 2018
BIOXI04: ANIMAL KINGDOM
332714
Which of the following is not a vertebrate?
1 Lamprey
2 Lancelet
3 Shark
4 Platypus
Explanation:
Lancelet does not have a vertebral column but has a notochord. However, it shows many affinities with the vertebrates. Lamprey, shark and Platypus are vertebrates that have a vertebral column.
BIOXI04: ANIMAL KINGDOM
332715
Mark the incorrect statement for cephalochordates
1 Notochord is replaced by a cartilaginous or bony vertebral column in the adults
2 They are exclusively marine animals
3 They are often referred to as protochordates
4 In them notochord extends from head to tail
Explanation:
In Cephalochordata, notochord extends upto anterior end of the body.
BIOXI04: ANIMAL KINGDOM
332716
Retrogressive metamorphosis is found in
1 Amphibia
2 Urochordata
3 Fishes
4 Cephalochordate
Explanation:
In retrogressive metamorphosis the larva possesses advanced characters which are lost during the development and the adult is either sedentary or degenerated with primitive characters. Urochordate adults, being sedentary, show degenerative characters while the free-swimming tadpole larva shows advanced chordate characters which are lost during metamorphosis.
332713
Which of the following animals do not undergo metamorphosis?
1 Moth
2 Tunicate
3 Earthworm
4 Starfish
Explanation:
Metamorphosis is transformation of larva into adult. Animal that perform metamorphosis are said to have indirect development. In earthworm there is no larval stages, development is direct and metamorphosis is direct.
NEET - 2018
BIOXI04: ANIMAL KINGDOM
332714
Which of the following is not a vertebrate?
1 Lamprey
2 Lancelet
3 Shark
4 Platypus
Explanation:
Lancelet does not have a vertebral column but has a notochord. However, it shows many affinities with the vertebrates. Lamprey, shark and Platypus are vertebrates that have a vertebral column.
BIOXI04: ANIMAL KINGDOM
332715
Mark the incorrect statement for cephalochordates
1 Notochord is replaced by a cartilaginous or bony vertebral column in the adults
2 They are exclusively marine animals
3 They are often referred to as protochordates
4 In them notochord extends from head to tail
Explanation:
In Cephalochordata, notochord extends upto anterior end of the body.
BIOXI04: ANIMAL KINGDOM
332716
Retrogressive metamorphosis is found in
1 Amphibia
2 Urochordata
3 Fishes
4 Cephalochordate
Explanation:
In retrogressive metamorphosis the larva possesses advanced characters which are lost during the development and the adult is either sedentary or degenerated with primitive characters. Urochordate adults, being sedentary, show degenerative characters while the free-swimming tadpole larva shows advanced chordate characters which are lost during metamorphosis.
