Elbow and knee are not made up of a single bone, but two or more bones which are joined to each other by a joint (Hinge joint). This joint along with the muscles help us to bend the elbow and knee.
Structures which have a common basic structure but perform different functions are called homologous structures. e.g. fore limbs of reptiles, amphibians and mammals. Yes, they have common ancestor but variously...
Fungi are not classified in plant kingdom because their cell wall is different from plant cell and is made up of chitin. They also lack chlorophyll and hence cannot do...
We acquire knowledge and skills in our lifetime such as learning dance, music, physical fitness, etc. But these skills cannot he passed to our progenies because:
(i) Such characters or experiences acquired...
No; Yes; No
One cannot associate a vector with the length of a wire bent into a loop. One can associate an area vector with a plane area. The direction of...
In our country, women still lag much behind men despite some improvements since Independence. Women face disadvantage, discrimination and oppression in various ways :
(i) The literacy rate among women is...
If there is no electricity in our city, there would be great scarcity of water. We would not able to use TV, computers etc. Even the mobile phone would not...
