1. | are all proteins. |
2. | can have a long lasting effect on their target cells. |
3. | are not transported by blood. |
4. | provide a point-to-point rapid coordination among organs |
I: | are located only in the cranial and thoracic regions of the human body. |
II: | are ductless glands. |
III: | secrete hormones. |
Statement I: | The classical definition of hormone describes hormone as a chemical produced by exocrine glands, released into the blood and transported to a nearby located target organ. |
Statement II: | Current scientific definition describes hormones as non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts. |
1. | do not have any endocrine system. |
2. | possess very simple endocrine systems with few hormones. |
3. | possess very complex endocrine systems with a large number of hormones. |
4. | produce only steroidal hormones. |
1. | is more in males than in females. |
2. | is more in females than in males. |
3. | is equal in males than in females. |
4. | is variable amongst adult males and adult females. |
1. | 1 | 2. | 2 |
3. | 3 | 4. | 4 |
1. | 1 | 2. | 2 |
3. | 3 | 4. | 4 |
Statement I: | is the apical part of diencephalon, forebrain. |
Statement II: | contains several groups of neurosecretory cells called nuclei which produce hormones. |