Answer:
Pleurisy
Explanation:
Pleurisy is a medical condition caused by the inflammation of the pleura membranes. The pleural membranes are vital part of the respiratory system. These membranes which surround the lungs and lines the inner chest wall, help to give cushion and reduce friction in the lungs. When the pleural membranes become inflamed, the surfaces become tough and sticky, thereby causing the sharp pain the person feels in the chest while breathing.
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.
Answer:
the dissolved oxygen of the water decreases.
the fish need the oxygen for respiration, breathing through their gills.
Explanation:
The salinity decreasing doesn't affect the pickerel, because it's a freshwater fish. no salt needed.
more light penetrating the water just means that more aquatic weed or grasses would grow, giving the pickerel more area to spawn their eggs.
temperature increase in the summer has no affect on the fish, since the spawning happens in late winter.
Answer:
Atomic number: 13
Electron Configuration:[NE] 3s²3p¹
Valence electron: 3
Answer: The tail gives the sperm cell development. It whips and undulates with the goal that the cell can venture out to the egg. Following sperm statement in the female regenerative plot, initiation of tail development is stifled until the sperm is conveyed to inside a moderately short separation of the egg.
Explanation:
