Answer:
The correct answer is option A. "The contents of blood come into closer contact with tissues in a closed system than an open system".
Explanation:
In a closed circulatory system, the blood has an specific path, circulating from arteries to veins and to smaller blood vessels throughout the body. This is in contrast with open circulatory systems at which the blood is not contained in arteries or veins but it suffuses the body. A closed circulatory system have many advantages over open circulatory system, however in a closed circulatory system the contents of blood are not into closer contact with tissues in than an open system. Actually, in an open circulatory system the blood is in closer contact with tissues.
I want to say it is going to be Carbohydrates. Sometimes bing works if you look it up and click on the yahoo answers link. Just a hint to help you out some! :) Have a good day! :)
Niacin is also known as Vitamin B3. It is needed by the body because it produces the coenzymes NAD and NADP which are responsible for the body's metabolic reactions. If you are deficient of niacin, the body can synthesize it using tryptophan. Food sources of tryptophan include eggs, liver, peanut butter and dairy products.
Answer:
D is a spit. It is produced as a result of longshore drift conveying sediment through the beach and accumulating the sediments at a hurdle.
Explanation:
Spits are a product of deposition of sediment - which is a result of constant supply of longshore drift due to an alteration in the way or shape of a coastline. It is an extended stretch of beach substances which links to the mainland out of the sea at a certain end.
A typial form of a spit is Spurn Head, located in the north east of England at the north of the Humber Estuary. It is formed as a result of deposition of material from the erosion of the Holderness Coast in the north direction. Another example is Spurn Head in Yorkshire.
P.S. The attached image shows a Spit
Smooth muscle is an involuntary non-striated muscle. It is divided into two subgroups; the single-unit (unitary) and multiunit smooth muscle<span>. Within single-unit cells, the whole bundle or sheet contracts as a syncytium.
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