CBSE Class 9 Science Worksheet
Unit 2-Organisation in the Living World - Diversity in Living Organisms
1.
Why are the plants like Pinus and Deodar called gymnosperms?
2.
Which of the following group is triploblastic?
A)
Arthropoda
B)
Annelida
C)
Mollusca
D)
Echinodermata
3.
State True or False: Both Monera and Protista may be autotrophic and heterotrophic.
A)
TRUE
B)
FALSE
4.
Choose the correct answer: Largest animal group is ___________________.
A)
Nemadota
B)
Annelida
C)
Arthropoda
D)
Mollusca
5.
Choose the correct answer: Unicellular organisms are grouped under _______________________.
A)
Protozoa
B)
Porifera
C)
Mollusca
D)
Annelida
6.
Choose the correct answer: Skeleton is made entirely of cartilage in ________________________.
A)
Tuna
B)
Shark
C)
Katla
D)
None of these
7.
State True or False: Animals which belong to Mollusca group show bilateral symmetry.
A)
TRUE
B)
FALSE
8.
Choose the correct answer: Octopus belongs to the group _______________________.
A)
Porifera
B)
Coelenterata
C)
Annelida
D)
Mollusca
10.
Fill in the blanks: The animals which lay eggs are known as __________ animals.
11.
Choose the correct answer: Three chambered hearts are found in __________________.
A)
Frogs
B)
Birds
C)
Humans
D)
Cows
12.
What are the two words of binomial nomenclature?
13.
Choose the correct answer: Association between blue green algae and fungi is called as ________________.
A)
Lichens
B)
Bryophyllum
C)
Mosses
D)
None of these
14.
Choose the correct answer: Well defined nucleus is absent in ______________________.
A)
Diaoms
B)
Fungus
C)
Blue green algae
D)
Yeast
15.
State True or False: Reptiles and Amphibians are cold-blooded animals.
A)
TRUE
B)
FALSE
16.
What will happen if pollination does not take place in the angiosperm ?
17.
Which of the following produce seed?
A)
Thallophyta
B)
Bryophyta
C)
Pteridophyta
D)
Gymnosperms
18.
Fill in the blanks: The plant is ______________, if the leaves have stalks.
19.
Write two characteristic feature of Annelida.
20.
Choose the correct answer: The body cavity of arthropoda is _______________________.
A)
Coelom
B)
Haemocoel
C)
Pseudocoel
D)
Acoelom
CBSE Class 9 Science Worksheet
Unit 2-Organisation in the Living World - Diversity in Living Organisms
Answers
1.
Because plants of this group bear naked seeds and are usually perennial, evergreen and woody.
2.
Option D
3.
Option B
4.
Option C
5.
Option A
6.
Option B
7.
Option A
8.
Option D
9.
It is a condition of the blastula in which there are two primary germ layers- the ectoderm and the endoderm.
10.
Oviparous
11.
Option A
12.
Generic name and specific name.
13.
Option A
14.
Option C
15.
Option A
16.
No seeds and fruits are produced by the plants.
17.
Option D
18.
Dicot
19.
Bilateral symmetry and true body cavity.
20.
Option B
