Diversity In Living Organisms — Science STD 9 — Question

Vikas is the variety of ______.

_________ involves breeding among unrelated animals.

Name the class in which:

1. Digits end up in nail and claws.
2. Hair are present as exoskeleton.

Name the most advantageous fish culture system.

What percent of cropped area of India is still unirrigated?

Which type of WBC is most abundant in lymph?

Organic manures include ________ manure, compost, ________ manure and vermicompost.

1. Only smooth nuscles cells.
2. Only skeletal muscle cells.
3. Both smooth and skeletal muscle cells.
4. Neither smooth nor skeletal muscle cells.