Diversity In Living Organisms — Science STD 9 — Question

What will happen if bone marrow is destroyed.

1. Farmers use high-quality seeds, do not adopt irrigation or use fertilizers.
2. Farmers use ordinary seeds, adopt irrigation and use fertilizer.
3. Farmers use quality seeds, adopt irrigation, use fertilizer and use crop protection measures.

'Milk is a very nutritious food'. Use the table given in the book to justify statement.

Distinguish between tracheids and vessels.

1. Ribosome.
2. Cell wall.

What are simple tissres? Explain their three different types

Name two classes of chordates in which clawed digits are present.