Answer:
Sir John Alexander Macdonald was the first prime minister of Canada
Answer: A person forcefully hits their head, neck or back.
Explanation:
A spinal injury can be defined as the damage that occurs to the spinal cord. It may cause temporary or permanent changes in the functioning of the spinal cord. The symptoms of spinal cord injury involves loss of functioning of muscles, autonomic functioning of the parts and loss of sensation. The brain responses may also get affected due to spinal cord injury.
According to the situation, the person might have fall on the bottom of the water body and could have hitted his back, neck or head. This might have disturbed the spinal cord of the person.
When blood calcium levels drop, glands embedded in the posterior thyroid secrete parathyroid hormone, which stimulates osteoclastic activity. It is made up of parathyroid glands that lie behind the thyroid glands. The reason why it is important because it controls calcium level in the blood and within the bones. It controlled by the low calcium levels in the blood it restorative parathyroid secretion whereas the high calcium levels in the blood stop the release of parathyroid hormone.
Answer:
Due to more open ecological opportunities on a given island, greater differences occur between island species. A single lineage diversifies rapidly, and descendant populations occupy many habitats and ecological roles.
Explanation: