The gasoline engine where the air and fuel mixture is burned is called the combustion chamber. A piston is used to increase and decrease the volume which prepares the fuel to be mixed with air. A spark plug is ignited then to create the combustion thereafter.
Answer:
A
Explanation:
These are small consecutive repetitive sections of the DNA – mostly between 5 – 50 times repetitions. They are not part of coding regions (genes) and therefore are prone to non-lethal mutations of DNA. They are therefore very variable between individuals and can be used for DNA forensic identification.
Answer:
Calcitonin
Explanation:
Calcitonin hormone is released by the para follicular cells of the thyroid gland. This hormone works against the parathyroid hormone.
Calcitonin hormone regulates the level of calcium by decreasing the blood calcium level. This hormone inhibits the osteoclast activity of the cells and decreases the absorption of calcium in pregnant women and child. Hence, calacitonin decreases plasma calcium levels in pregnant women and children.
Thus, the correct answer is option (B).
Answer: Volcanoes expel a mixture of gases consisting almost entirely of water vapor and oxygen
Volcanic eruptions are inversely proportional to local atmospheric pressure.
Explanation: I think
