Answer:
A diving regulator is a pressure regulator that reduces the pressure of gas in the tank and deliver it to the diver so that he/she can breathe easily. It must pass the controlled laboratory testing and must have a second adjustment knob to ensure ease of breathing. Modern regulators are precision made and designed to work under demanding conditions. 1st stage and 2nd stage, diaphragm and piston, exhaust valve and purge button are types of diving regulators.
The circulatory system - hemoglobin in the blood transports oxygen :)
The molecules doesn't need energy to cross through.
The diffusion doesn't need protien, the molecules pass between phospholipids by passes protien. It moves smaller molecules. Facilitated need protien also hormone, and larger molecules.
I wish it makes sense.
Answer: it stimulates the pancreas and the liver to produce secretions.
There are a lot of hormone in making a good digestion and is responsible in the process to function properly. Secretin stimulate bicarbonate (base) from the liver and pancreas to promote normal growth and maintenance of the pancreas. It also counteracts the blood glucose that triggers the increase of insulin release and oral glucose intake. It also reduce the gastric juice secreted by the stomach along the digestion.
False in order for an ecosystem to survive there has to be some sort of competition. for example, if there were no sharks to eat little fish the little fish would over populate and then the little fish would run out of food which then means that whatever the little fish ate is now extinct and so on hinting the food chain's name. If it wasn't for competition nothing would survive
