Heredity and Evolution — Science STD 10 — Question

The use of iodised salt is recommended to prevent:

What prevents the backflow of blood inside the heart during contraction?

In vegetative reproduction, the new individuals are genetically :

What prevents the backflow of blood inside the heart during contraction?

The organs which perform different functions but have the same basic structure are known as :

Ethane and ethene can be distinguished by :

Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g. hydrogen. After the formation of four bonds, carbon attains the electronic configuration of :

The property which is common between vinegar and curd is that they:

Which part of female reproductive tract is called birth canal?

Which of the following statements are usually correct for carbon compounds? These :

1. Are good conductors of electricity.
2. Are poor conductors of electricity.
3. Have strong forces of attraction between their molecules.
4. Do not have strong forces of attraction between their molecules.