Question

Jual cells together form
Males and females have special reproductive cells called
III. Match the following
1x55
Column A
1
Hydra
Broadcasting
3 Biosphere reserves
4 Genes
S. PHBV
Column B
a) hereditary information
b) budding
c) biodegradable
d) scattering seeds
e) habitat protection
ants a
noun
IV. Very short answer questions:
1x5=5
1. Define metamorphosis
2 What is manuring?
3. What are fossil fuels?
What is a polymer?
5 What do you understand by the term biodiversity?
134
V Short answer questions. 3x5=15
What is deforestation? What are the main reasons of deforestation?
2 Differentiate between thermoplastics and thermosetting plastics.
3 Differentiate between Rabi and Kharif crops.
4 Explain the process of formation of coal.
5. Write three disadvantages of fossil fuels.
VI. Long answer questions: 5x2=10
1. What do you mean by invitro fertilisation? How is the sex of a baby determined?
2. Write three difference between plant cell and animal cell. Draw a well labelled diagram of a plant
cell showing
i) cell wall
ii) chloroplast
1) vacuole​

Answer 1

Explanation:

Jual cells together form

Males and females have special reproductive cells called

III. Match the following

1x55

Column A

1

Hydra

Broadcasting

3 Biosphere reserves

4 Genes

S. PHBV

Column B

a) hereditary information

b) budding

c) biodegradable

d) scattering seeds

e) habitat protection

ants a

noun

IV. Very short answer questions:

1x5=5

1. Define metamorphosis

2 What is manuring?

3. What are fossil fuels?

What is a polymer?

5 What do you understand by the term biodiversity?

134

V Short answer questions. 3x5=15

What is deforestation? What are the main reasons of deforestation?

2 Differentiate between thermoplastics and thermosetting plastics.

3 Differentiate between Rabi and Kharif crops.

4 Explain the process of formation of coal.

5. Write three disadvantages of fossil fuels.

VI. Long answer questions: 5x2=10

1. What do you mean by invitro fertilisation? How is the sex of a baby determined?

2. Write three difference between plant cell and animal cell. Draw a well labelled diagram of a plant

cell showing

i) cell wall

ii) chloroplast

1) vacuole