Seeds offer the following advantages to angiosperms:

(i) Seed formation is more dependable as the reproductive processes like pollination and fertilisation are independent of water.

(ii) The hard seed coat protects the young embryo from harsh environmental conditions.

(iii) Seed have better adaptive strategies for the dispersal to new habitats.

Endometrium is the inner glandular wall of the uterus. It undergoes cyclic changes during menstrual cycle. 

Myometrium is the middle wall of the uterus. It brings about strong contractions during the delivery of the baby.

Colour blindness is a sex-linked disease. The gene for this disorder is present on the X chromosome. If a colour-blind child is born to a normal couple, then the mother would be a carrier of the disease. The child would be male. The following cross shows the inheritance of the disorder:

The following are the three reasons that led to the delay in accepting Mendel's work:

i) Lack of communication and publicity.

ii) His concept of factors (genes) as discrete units that did not blend with each other was not accepted in the light of variations occurring continuously in nature.

iii) Mendel's approach to explain biological phenomenon with the help of mathematics was also not accepted

It is not appropriate to blame women for producing female children because scientifically it is the father who determines the sex of the baby.

The scientific explanation for the following is:

The chromosome pattern in human females is XX and human males are XY. Males are heterogametic and produce two types of gametes one carrying X and the other carrying Y. The females are homogametic and produce same type of gamete carrying X chromosome. The sex of the child depends on the sperm that fuses with the ovum. If the fertilizing sperm has an X chromosome, then the baby would be a female and if a sperm with Y chromosome fuses with the ovum, it will develop into a male child. Thus, males are responsible for determination of the sex of a child. So, we should not blame women for the birth of a female child and stop ill-treating them.