CBSE Class 11 Biology MCQs Set K

Choose the most appropriate answer.

Question. The characters of vertebrates are:
(a) presence of vertebral column 
(b) internal living skiliton 
(c) three main body parts 
(d) all of these
Ans. D

Question. Vertebrates are:
(a) bilaterally symmetrical 
(b) radially symmetrical
(c) vertically symmetrical 
(d) asymmetrical
Ans. A

Question. Which of these is not true of Pisces?
(a) presence of gills for breathing 
(b) tail as organ of locomotion
(c) undeveloped skull 
(d) absence of middle ear
Ans. C

Question. Which of these are regarded as the first of the vertebrates?
(a) bony fishes 
(b) jawless fishes 
(c) cartilaginous fishes 
(d) all of these
Ans. B

Question. Sharks belong to
(a) cartilaginous fishes 
(b) bony fishes 
(c) jawless fishes 
(d) none of these
Ans. A

Question. Jellyfish fish belongs to
(a) bony fishes 
(b) cartilaginous fishes 
(c) jawless fishes 
(d) none of these
Ans. D

Question. Which of the following are without jaws?
(a) dogfish 
(b) trout 
(c) pike 
(d) none of these
Ans. D

Question. Which of these has cartilaginous skeleton?
(a) sharks 
(b) eel 
(c) pike 
(d) rohu
Ans. A

Question. Which of the following is the character of amphibians?
(a) living both in water and on land 
(b) cold blooded
(c) least numerous of the terrestrial vertebrates 
(d) all of these
Ans. D

Question. Which of these is not true of amphibians?
(a) breathing by gills in the larval stage 
(b) breathing by lunge in the adult stage
(c) mostly internal fertilization 
(d) cold blooded
Ans. C

Question. Salamander is an example of
(a) bony fishes 
(b) jawless fishes 
(c) amphibians 
(d) cartilaginous fishes
Ans. C

Question. Which of the following is not the character of amphibians?
(a) cold blooded 
(b) do not depend on water for reproduction
(c) hibernate in winter 
(d) breath by gills in the larval stage
Ans. B

Question. Reptiles are
(a) warm blooded 
(b) cold blooded 
(c) with internal fertilization 
(d) with a scaly skin
Ans. B

Question. Which of these is not true of reptiles?
(a) internal fertilization 
(b) predominantly terrestrial
(c) tetrapods 
(d) dependent on water for reproduction
Ans. D

Question. Which of these is not the character of reptiles?
(a) fertilization is internal 
(b) eggs are large shelled
(c) lay eggs in water 
(d) cold blooded
Ans. C

Question. Which of the following is the character of reptiles?
(a) dipods
(b) tetrapods
(c) pentapods
(d) polypods 
Ans. B

Question. The heart of reptiles is
(a) imperfectly two chambered
(b) imperfectly three chambered
(c) imperfectly four chambered
(d) eight chambered
Ans. C

Question. Which of the following is true of reptiles?
(a) do not lay eggs
(b) lay eggs in water
(c) lay eggs on land
(d) eggs are without yolk
Ans. C

Question. In reptiles amnion and allantois are extra membranes of:
(a) egg
(b) sperm
(c) zygote
(d) embryo
Ans. D

Question. Which of these is an example of amphibian?
(a) sea horse
(b) rohu
(c) newt
(d) snake
Ans. C

Question. Which of these is extinct reptile?
(a) Turtles
(b) Brontosaurus
(c) Snake
(d) Alligator
Ans. B

Question. Which of these do the Reptiles and Aves not share?
(a) Similar embryonic development
(b) Presence of forelimbs
(c) Shelled eggs
(d) Scales on hind limbs
Ans. B

Question. Which of these is not true of birds?
(a) cold blooded
(b) heavy bones
(c) weak pectoral muscles
(d) all of these
Ans. D

Question. Which of the following birds cannot fly?
(a) Rhea
(b) Cassowary
(c) Penguin
(d) All of these
Ans. D

Question. In mammals fertilization is
(a) absent
(b) internal
(c) external
(d) both internal and external
Ans. B

Question. The ear of mammals is divided into
(a) three parts
(b) four parts
(c) five parts
(d) six parts
Ans. A

Question. The skin of mammals is provided with sweat glands for
(a) respiration
(b) temperature regulation
(c) oily secretion
(d) blood movement regulation
Ans. B

Question. Which of these is not the mammalian character?
(a) presence of hairs
(b) right aortic arch
(c) diaphragm
(d) well developed large brain
Ans. B

Question. Which of these is not true of the egg laying mammals?
(a) feeding young with milk
(b) presence of hairs
(c) diaphragm
(d) right aortic arch
Ans. D

Question. Which of these are the placental mammals?
(a) prototherians
(b) metatherians
(c) eutherians
(d) all of these
Ans. C

Question. Metatherians
(a) lay eggs
(b) have to teeth in the adult
(c) do not have true placenta
(d) have spiny skin
Ans. C

Question. Flying mammals are included
(a) Rodentia
(b) Chiroptera
(c) Primates
(d) Cetacean
Ans. B

Question. Elephants are included in
(a) carnivore
(b) perissodactyla
(c) artiodactyla
(d) proboscidia
Ans. D

Question. Artiodactyla include
(a) moles
(b) cattle
(c) horses
(d) wolves
Ans. B

Question. In Which of the following young are born in rudimentary conditions?
(a) kangaroos
(b) zebras
(c) elephants
(d) bats
Ans. A

Question. The vertebrates are
(a) all unisexual
(b) all hermaphrodite
(c) some unisexual and some hermaphrodite
(d) all neuter (without sex)
Ans. A