Reproduction in Organisms Test - 15

The flowers that contain both male and female reproductive organs in same flower are called bisexual. In Hibiscus flower both stamen and carpel are present within same flower.

Eyes of potato represent the node at which buds are formed. These buds are used to grow in plants. The buds are axillary in position. The potato tubers are actually modified stem.

Egg is released from the ovary in the middle of menstrual cycle. In human beings, one egg is released one month from one ovary. Ovulation is under the control of hormones.

Embryo sac is located inside the ovule that acts as female gametes. Egg fertilization and subsequent embryo development occurs inside the embryo sac. Endosperm is triploid and provides nutrition to embryo.

Potato is stem tuber as it contains nodes in form of eyes although it is formed inside the soil. New potato can be grown using the tuber in which new plantlets grows out from eyes

Artificial vegetative propagation is carried out by cutting, layering and grafting. During grafting root system of one plant and shoot system of other plant is joined together. The upper part is called scion and lower part is called stock.

Higher organism shows well marked change in structure of body during different phases of life span. After growth and maturity (juvenile phase) reproductive phase started for continuation of species.