(a) Make a labelled diagram of the female reproductive organ of a
(i) flowering plan
(ii) mammal (man) .
(b) State the functions of any two of the labelled parts in (a) (i) and (ii).
(c) Compare reproduction in mammals, amphibians and birds with respect to
(i) number of eggs produced
(ii) method of fertilization
(iii) parental care.
Explanation
(i)
(b)(i)Functions of Stigma in (a)(i) above is that it receives pollen grains and nourishes the pollen grains to germination while the Ovary houses the ovule or develops embryo or develops to fruit. The style serves as the passage way for germinating pollen grain to reach the ovule. The Ovule develops to seed after fertilization and Placenta connects ovule or seed to the ovary for nourishment.
(b)(ii) The ovary produces ovum/egg/hormones. The Funnel receives the ovum or egg. Fallopian tube or oviduct serves as a passage way for ovum or site of fertilization. The Uterus or womb houses the embryo till birth. The Vagina is the passage way for the baby during birth and it receives male organs (penis) and sperm during coition or intercourse. The Vulva is the entrance to the vagina. It receives male organ or penis and serves as a passage way for baby.
| Mammals | Amphibians | Birds | |
|
No of eggs |
One or few Internal Present and fora Iona time |
Many External Absent |
Many or few |