Implantation of embryo occurs in .... .

During fertilization in plants, the two male gametes are released by the pollen tube in .......... .

In humans, sperm production occurs in the ............ .

In case of plants like sugarcane and grasses, ........... occurs with the help of buds present on nodes.

Members of corolla are called as .................. and they are variously colored.

Each pollen tube contains

In angiosperms, second male gamete fuses with two polar nuclei to form

Each embryo sac consists of

Menstrual cycle is a natural process, controlled majorly by ............... hormones.

............. reproduces from buds on the leaf margin.

By which of the following method Paramoecium divides?

The property of complete regeneration is observed in

Ovary is present at the basal end of each

The length of a sperm is about ............. micrometers.

In ..............., the parent cell divides to form two similar daughter cells. It occurs either by mitosis or amitosis.

Haploid male gamete fuses with haploid female gamete to form .......... zygote.

............. is the union of sperm and ovum to initiate formation of a zygote.

Seminal vesicles release their secretion in

Spirogyra reproduces asexually by the method

Amoeba shows both binary fission and

Which of these plant parts become sticky during pollination?

During unfavourable or adverse conditions Amoeba forms a protective covering around its plasma membrane to form a

Identify the CORRECT statement from the following.

Germ cells present in the ........... divide by meiosis to produce sperms.

Testes are present in the ............, outside the abdominal cavity.

Embryonic development in humans is completed approximately within ......... months after the fertilization.

Calyx and ................ are called as accessory whorls.

Twins born with some parts of body joined to each other are known as

Euglena divides by

............... is the structure inside which spores of bread mould are formed.

Complete the analogy and select the correct option. Ovary: Fruit:: Ovules:

During asexual reproduction, cells divide by the process of

In which of these techniques, fertilization is brought about in the test-tube and the embryo formed is implanted in uterus of woman at appropriate time?

Many flowers have a stalk for support and it is called as

Which of these is the method of reproduction of yeast?

...............have filamentous body and generally grow on wet bread kept in a humid place.

Which of these is a sexually transmitted disease caused by bacteria?

Body breaks up into several fragments and each fragment starts to live as a new individual. This is ........... type of reproduction.

During seed germination ................ develops by using food stored in endosperm of the seed.

Under favourable condition, Hydra reproduces by the process of

Ovulation occurs usually on .......... day of menstrual cycle.

The number of chromosome gets ............ in meiosis.

Which of the following is NOT the paired structure in human male reproductive system?

A bisexual flower shows the presence of

Fragmentation is observed in

Androecium and are the essential whorls.

Spores released from sporangium of Mucor germinate in moist and warm place and form new fungal colony. It shows

In asexual reproduction there is no involvement of

............ present in semen gives energy to the sperms.

BInary fussion occurs by

Menopause generally occurs at the age of about