LET’S LEARN BIOLOGY
SIMPLIFIED LEARNING MATERIAL 2023-24
ASSIGNMENT NO.: 46 CLASS: 11th SUBJECT: Biology DATE: 19.08.2023
DD.MM.YYYY
CLASS: 11TH
SUBJECT: BIOLOGY
UNIT NO.& NAME: 01 - DIVERSITY IN LIVING WORLD
CHAPTER NO.& NAME: 04 - ANIMAL KINGDOM
TOPIC: ONE MARKS QUESTIONS FROM WHOLE CHAPTER WITH
ANSWERS
ASSIGNMENT NO:46 DATE: 19.08.2023
Q1. Read the following statements. (NEET-2021)
(a) Metagenesis is observed in Helminths.
(b) Echinoderms are triploblastic and coelomate animals.
(c) Round worms have organ-system level of body organization
(d) Comb plates present in ctenophores help in digestion.
(e) Water vascular systemis characteristic of Echinoderms.
Choose the correct answer from the options given below.
1. (a), (d) and (e) are correct
2. (b), (c) and (e) are correct
3. (c), (d) and (e) are correct
4. (a), (b) and (c) are correct
Ans. The Correct option is (2).
Metagenesis (alternation of generation) is observed in members of phylum
Coelenterata (Cnidaria). Echinoderms are triploblastic and coelomate animals as
true coelom is observed in them. Roundworms (Aschelminths) have organ system
level of organization. Comb plates present in ctenophores help in locomotion.
Water vascular system is seen in echinoderms, which helps in locomotion, capture
Page 1 of 16
, LET’S LEARN BIOLOGY
SIMPLIFIED LEARNING MATERIAL 2023-24
ASSIGNMENT NO.: 46 CLASS: 11th SUBJECT: Biology DATE: 19.08.2023
DD.MM.YYYY
and transport of food and respiration.
Q2. Match the following: (NEET-2021)
List-II
List-I
(a) Physalia (i) Pearl oyster
(b) Limulus (ii) Portuguese Man
of War
(c) Ancylostoma (iii) Living fossil
(d) Pinctada (iv) Hookworm
Choose the correct answer from the options given below.
(a) (b) (c) (d)
(1) (i) (iv) (iii) (ii)
(2) (iv) (i) (iii) (ii)
(3) (ii) (iii) (i) (iv)
(4) (ii) (iii) (iv) (i)
Ans. Option (4) is correct.
Because Physalia belongs to phylum-Coelenterata (Cnidaria) and is commonly
known as Portuguese man of war. Limulus is considered as a living fossil and
commonly known as king crab. Ancylostoma is a roundworm and commonly
known as hookworm. Pinctada is commonly known known as pearl oyster,
included in phylum Mollusca.
Q3. Which of the following options does correctly represent the
characteristic features of phylum Annelida? (NEET-2020)
a). Triploblastic, unsegmented body, and bilaterally symmetrical.
b). Triploblastic, a segmented body, and bilaterally symmetrical.
c). Triploblastic, flattened body, and acoelomate condition.
d). Diploblastic, mostly marine and radially symmetrical.
Ans. The Correct option is (b).
Page 2 of 16
, LET’S LEARN BIOLOGY
SIMPLIFIED LEARNING MATERIAL 2023-24
ASSIGNMENT NO.: 46 CLASS: 11th SUBJECT: Biology DATE: 19.08.2023
DD.MM.YYYY
Q4. If the head of cockroach is removed, it may live for few days
because: (NEET-2020)
a). The cockroach does not have nervous system
b). The head holds a small proportion of a nervous system while
the rest is situated along the ventral part of its body
c). The head holds a 1/3rd of a nervous system while the rest is
situated along the dorsal part of its body
d). The supra-oesophageal ganglia of the cockroach are situated in
ventral part of abdomen.
Ans. The correct answer is (b).
The nervous system of the cockroach is distributed very little in the head and most
of the nervous system along the ventral part of the body of the cockroach. This is
the reason cockroaches may live for few days even after removal of the head from
the body.
Q5. Which of the following options does correctly represent respective
distinctive characteristics and select the correct option: (NEET-2020)
Organisms Characteristics
(a) Platyhelminthes (i)Cylindrical body with no segmentation
(b) Echinoderms (ii)Warm blooded animals with direct
development
(c) Hemichordates (iii)Bilateral symmetry with incomplete digestive
system
(d) Aves (iv)Radial symmetry with indirect development
1. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
2. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
3. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
4. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
Page 3 of 16
SIMPLIFIED LEARNING MATERIAL 2023-24
ASSIGNMENT NO.: 46 CLASS: 11th SUBJECT: Biology DATE: 19.08.2023
DD.MM.YYYY
CLASS: 11TH
SUBJECT: BIOLOGY
UNIT NO.& NAME: 01 - DIVERSITY IN LIVING WORLD
CHAPTER NO.& NAME: 04 - ANIMAL KINGDOM
TOPIC: ONE MARKS QUESTIONS FROM WHOLE CHAPTER WITH
ANSWERS
ASSIGNMENT NO:46 DATE: 19.08.2023
Q1. Read the following statements. (NEET-2021)
(a) Metagenesis is observed in Helminths.
(b) Echinoderms are triploblastic and coelomate animals.
(c) Round worms have organ-system level of body organization
(d) Comb plates present in ctenophores help in digestion.
(e) Water vascular systemis characteristic of Echinoderms.
Choose the correct answer from the options given below.
1. (a), (d) and (e) are correct
2. (b), (c) and (e) are correct
3. (c), (d) and (e) are correct
4. (a), (b) and (c) are correct
Ans. The Correct option is (2).
Metagenesis (alternation of generation) is observed in members of phylum
Coelenterata (Cnidaria). Echinoderms are triploblastic and coelomate animals as
true coelom is observed in them. Roundworms (Aschelminths) have organ system
level of organization. Comb plates present in ctenophores help in locomotion.
Water vascular system is seen in echinoderms, which helps in locomotion, capture
Page 1 of 16
, LET’S LEARN BIOLOGY
SIMPLIFIED LEARNING MATERIAL 2023-24
ASSIGNMENT NO.: 46 CLASS: 11th SUBJECT: Biology DATE: 19.08.2023
DD.MM.YYYY
and transport of food and respiration.
Q2. Match the following: (NEET-2021)
List-II
List-I
(a) Physalia (i) Pearl oyster
(b) Limulus (ii) Portuguese Man
of War
(c) Ancylostoma (iii) Living fossil
(d) Pinctada (iv) Hookworm
Choose the correct answer from the options given below.
(a) (b) (c) (d)
(1) (i) (iv) (iii) (ii)
(2) (iv) (i) (iii) (ii)
(3) (ii) (iii) (i) (iv)
(4) (ii) (iii) (iv) (i)
Ans. Option (4) is correct.
Because Physalia belongs to phylum-Coelenterata (Cnidaria) and is commonly
known as Portuguese man of war. Limulus is considered as a living fossil and
commonly known as king crab. Ancylostoma is a roundworm and commonly
known as hookworm. Pinctada is commonly known known as pearl oyster,
included in phylum Mollusca.
Q3. Which of the following options does correctly represent the
characteristic features of phylum Annelida? (NEET-2020)
a). Triploblastic, unsegmented body, and bilaterally symmetrical.
b). Triploblastic, a segmented body, and bilaterally symmetrical.
c). Triploblastic, flattened body, and acoelomate condition.
d). Diploblastic, mostly marine and radially symmetrical.
Ans. The Correct option is (b).
Page 2 of 16
, LET’S LEARN BIOLOGY
SIMPLIFIED LEARNING MATERIAL 2023-24
ASSIGNMENT NO.: 46 CLASS: 11th SUBJECT: Biology DATE: 19.08.2023
DD.MM.YYYY
Q4. If the head of cockroach is removed, it may live for few days
because: (NEET-2020)
a). The cockroach does not have nervous system
b). The head holds a small proportion of a nervous system while
the rest is situated along the ventral part of its body
c). The head holds a 1/3rd of a nervous system while the rest is
situated along the dorsal part of its body
d). The supra-oesophageal ganglia of the cockroach are situated in
ventral part of abdomen.
Ans. The correct answer is (b).
The nervous system of the cockroach is distributed very little in the head and most
of the nervous system along the ventral part of the body of the cockroach. This is
the reason cockroaches may live for few days even after removal of the head from
the body.
Q5. Which of the following options does correctly represent respective
distinctive characteristics and select the correct option: (NEET-2020)
Organisms Characteristics
(a) Platyhelminthes (i)Cylindrical body with no segmentation
(b) Echinoderms (ii)Warm blooded animals with direct
development
(c) Hemichordates (iii)Bilateral symmetry with incomplete digestive
system
(d) Aves (iv)Radial symmetry with indirect development
1. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
2. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
3. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
4. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
Page 3 of 16
