In the given exercise, an Assertion is followed by the corresponding Reason. Mark the suitable answer from the given options:
1.
| Assertion: | In a scary situation, heart beats quicker, the breathing rate will increase and thus supplying our muscles with more oxygen, which will reduce the blood flow to the digestive system and skin. |
| Reason: | Responses in the hormonal system are extensive, i.e., acts upon a wide range of muscles. |
2.
| Assertion: | A goitre is an enlargement of the thyroid gland causes swelling in the neck region. |
| Reason: | Thyroid follicular cells produce T4 and T3 hormones and iodine is required for the thyroid gland to produce hormones at a regular rate. |