1. The respiratory surface of human is:
(a) Nostril
(b) Bronchiole
(c) Alveoli
(d) Trachea
2. The network of blood capillaries presents in this layer of skin:
* **Epidermis✓**
* Dermis✓
* Hypodermis
* Endodermis
3. Stimulus is detected by:
* **Receptor✓**
* Effector
* Nerves
* All of these
4. Softening and weakening of bone in children due to deficiency of Vitamin D, is called:
* Osteoporosis
* Osteoarthritis
* **Rickets✓**
* Rheumatic fever
5. The 3N zygote in angiosperm develops into:
* Seed Coat
* Cotyledon
* Embryo
* **Endosperm✓**
6. The chemical material of a chromosome is called:
* Cromatids
* Chromeres
* Chromonema
* **Chromatin✓**
7. The group of organisms belong to the same species living in a particular area is called:
* Community
* Species
* Genes
* **Population✓**
8. The study of complete graph of human genome is called:
* PCR
* **HGP✓**
* Medicines
* Soma-Clonal
9. Medicine for the treatment of Rheumatoid arthritis is obtained from:
* Animals
* **Minerals✓**
* Plants
* Microorganism
10. Increase in rate of breathing is due to:
* **increase CO₂ in blood✓**
* increase O₂ in blood
* decrease CO₂ in blood
* decrease O₂ in blood
11. The way of seed production without fusion of male and female gametes is called:
* **Parthenocarpy✓**
* Apomixes✓
* Grafting
* Scion
