In the following diagram showing the structure of embryo of a dicot seed, what are the parts marked I, II and III sequentially?

When you study a slide showing different stages of budding in yeast, you observe the following stages:

I. The bud may get Separated from the parent body and develop into a new individual.

II. The body of the bud develops and gives rise to another baby bud.

III. A bud comes out in any direction from the body of the parent cell.

IV. Thus they may form a colony. The proper sequence of the above stages is

Study the following statements:

I. Wings of birds and wings of bats are homologous organs.

II. Wings of birds and wings of insects are modified forelimbs.

III. Wings of birds and wings of insects are analogous organs.

IV. Wings of birds and forelimbs of horse are homologous organs.

The correct statements are:

What happens when acetic acid is added in a solution of NaCO₃ in a test tube. Write the equation for detecting the gas evolved.

When a ray of light passes through a glass slab how many times does it change its path and why?