21)

The flower of the Hibiscus plant is

Class 10 Biology

A)

bisexual

B)

unisexual

C)

neuter

D)

very small

22)

The part of the flower which is present in the centre of the flower is

Class 10 Biology

A)

Sepals

B)

Petals

C)

Carpels

D)

Stamens

23)

The seed that contains the future plant is called the

Class 10 Biology

A)

cotyledons

B)

seed coat

C)

germ cells

D)

embryo

24)

The period of pregnancy is called

Class 10 Biology

A)

gestation period

B)

incubation period

C)

ovulation

D)

menstruation period

25)

The process of release of eggs from the ovary is called

Class 10 Biology

A)

menstruation

B)

reproduction

C)

insemination

D)

ovulation

26)

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

Class 10 Biology

A)

ovyfetion

B)

germination

C)

puberty

D)

propagation

27)

 In human beings, the fertilization occurs in the

Class 10 Biology

A)

uterus

B)

ovaries

C)

fallopian tubes

D)

vagina

28)

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

29)

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

30)

Which among the following diseases is not sexually transmitted?

Class 10 Biology

A)

Syphyllis

B)

Hepatitis

C)

HIV-AIDS

D)

Gonorrhea