Name two salts each of calcium and magnesium which make the water hard?

Study the different conclusions drawn by students on the basis of their observations of fresh available specimens of plants and animals:

I. Potato and sweet potato are homologous organs.

II. Wings of insects and wings of bird are analogous organs.

III. Wings of insects and wings of bats are homologous organs.

IV. Thorns of citrus and tendrils of Cucurbita are homologous organs.

The correct conclusions are:

You have a basket of vegetables which contains carrot, potato, tomato, ginger, radish, sweet potato. Select two vegetables to represent the correct homologous structures.

Name the process of asexual reproduction shown by yeast. What type of living being is yeast? What is its commercial importance?

List the factors on which the angle of deviation through a prism depend?