11)

During favourable conditions, Amoeba reproduces by

Class 10 Biology

A)

multiple fission

B)

 binary fission

C)

budding

D)

fragmentation

12)

A feature of reproduction that is common to Amoeba, Yeast and Spirogyra is that

Class 10 Biology

A)

they reproduce asexually

B)

 they are all unicellular

C)

 they reproduce only sexually

D)

they are all multicellular

13)

The ability of a cell to divide into several cells during reproduction in Plasmodium is called

Class 10 Biology

A)

budding

B)

 multiple fission

C)

binary fission

D)

reduction division

14)

Bryophyllum can be propagated vegetatively by the

Class 10 Biology

A)

stem

B)

leaf

C)

root

D)

flower

15)

Vegetative propagation refers to formation of new plants from

Class 10 Biology

A)

stem, flowers and fruits

B)

stem, leaves and flowers

C)

stem, roots and flowers

D)

stem, roots and leaves

16)

In a potato, vegetative propagation takes place by:

Class 10 Biology

A)

leaf

B)

stem  tuber

C)

root

D)

grafting

17)

Vegetatively propagated plants

Class 10 Biology

A)

do not bear roots

B)

do not bear buds

C)

are genetically similar

D)

are genetically dissimilar

18)

Spirogyra reproduce by

Class 10 Biology

A)

budding

B)

fragmentation

C)

regeneration

D)

fission

19)

In Rhizopus, tubular thread like structures bearing sporangia at their tips are called

Class 10 Biology

A)

filaments

B)

hyphae

C)

rhizoids

D)

roots

20)

Plants like banana, rose, jasmine, orange have lost the capacity to produce

Class 10 Biology

A)

buds

B)

flower

C)

roots

D)

seeds