State the basic requirement for sexual reproduction? Write the importance of such reproductions in nature.
State the changes that take place in the uterus when :
Implantation of the embryo has occurred.
State the changes that take place in the uterus when :
Female gamete/egg is not fertilised
Acquired Traits | Inherited Traits |
Traits developed during lifetime. | Traits present since the birth. |
Cannot be inherited that does not pass to the offsprings | Are inherited by the offsprings. |
Not in the genes. for eg behaviour, the art of playing an instrument | In the genes. For example hair colour, height. |
Explain with the help of an example each, how the following provides evidence in favour of evolution:
Homologous organs
Explain with the help of an example each, how the following provides evidence in favour of evolution:
Analogous organs
Explain with the help of an example each, how the following provides evidence in favour of evolution:
Fossils