31)

Which of the following method of contraception protects from acquiring sexually transmitted diseases?

Class 10 Biology

A)

Surgery

B)

Condoms

C)

Copper-T

D)

Oral-pills

32)

In human males, the testes lie in the scrotum, because it helps in the

Class 10 Biology

A)

 process of mating

B)

easy transfer of gametes

C)

formation of sperms

D)

secretion of estrogen

33)

The process of reproduction involving only one cell or one parent is called ………….. 

Class 10 Biology

A)

Asexual reproduction

B)

Sexual reproduction

C)

Reproduction

D)

Digestion

34)

Which among the following does not reproduce by spore formation:

Class 10 Biology

A)

Penicillium fungus

B)

Yeast fungus

C)

Mucor fungus

D)

Rhizopus fungus

35)

The rapid spreading of bread mould on slices of bread are due to:

(i) Presence of large number of spores in air

(ii) Presence of large number of thread-like branched hyphae

(iii) Presence of moisture and nutrients

(iv) Formation of round shaped sporangia

Class 10 Biology

A)

(i) and (iii)

B)

(ii) and (iv)

C)

 (i) and (ii)

D)

(iii) and (iv)