1. | connective | 2. | placenta |
3. | thalamus or petal | 4. | anther |
1. | LH and FSH triggers ovulation in ovary |
2. | LH and FSH decrease gradually during the follicular phase |
3. | LH triggers the secretion of androgens from the Leydig cells. |
4. | FSH stimulates the sertoli cells which help in spermiogenesis |
1. | peptidoglycan | 2. | cellulose |
3. | hemicelluloses | 4. | chitin |
Asthma may be attributed to?
1. allergic reaction of the mast cells in the lungs
2. inflammation of the trachea
3. accumulation of fluid in the lungs
4. bacterial infection of the lungs