Improvement In Food Resources — Science STD 9 — Question

Why is life not possible on Venus and Mars?

Name the three most important mineral elements required for plant growth.

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

Enumerate locomotory organs of annelids?

Name the structure from which all multicellular organisms develop.

Name a reptile which does not possess limbs.

Name two types of fisheries.

Name one sexually transmitted viral disease.