Give one chemical difference between the hydrogen and deuterium.

Give one difference between acrocentric and telocentric chromosomes.

Give three differences between frogs & toads?

Give the difference between symport and antiport.

Give two difference between : Ionic and covalent compounds

Give two difference between : Diamond and graphite

Write four points of differences between the phyla Porifera and Ctenophora. Give an example of each.

Give one chemical test to distinguish between the following pair Pentan-2-one and Pentan-3-one

Give one chemical test to distinguish between the following pairs of compounds : Methylamine and dimethylamine