21)

The period during adolescence when the reproductive tissues begin to mature is called

Class 10 Biology

A)

ovyfetion

B)

germination

C)

puberty

D)

propagation

22)

 In human beings, the fertilization occurs in the

Class 10 Biology

A)

uterus

B)

ovaries

C)

fallopian tubes

D)

vagina

23)

Along the path of the vas-deferens the secretions of which gland provide nutrition to the sperms?

Class 10 Biology

A)

Prostate glands

B)

Seminal vesicles

C)

Scrotum

D)

Urinary bladder

24)

The embryo in humans gets nutrition from the mother’s blood with the help of a special tissue called

Class 10 Biology

A)

Placenta

B)

Villi

C)

Uterus

D)

Womb

25)

Which among the following diseases is not sexually transmitted?

Class 10 Biology

A)

Syphyllis

B)

Hepatitis

C)

HIV-AIDS

D)

Gonorrhea

26)

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

27)

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

28)

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

29)

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

30)

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)