The correct answer is d. AV valves close.
<span>The atrioventricular valves<span> (AV valves), separate the atria from the ventricles and allow one-way blood flow. The right AV valves is a tricuspid valve<span> and the left AV valve is a mitral valve<span>. When the atrial pressure exceeds ventricular pressure, the AV valves are opened and blood flows into the ventricles. On the other hand, when the ventricular pressure exceeds atrial pressure the AV valves are closed.</span></span></span></span>
Answer:
Option A, Prokaryotes
Explanation:
The prokaryotic cells are unicellular simple organism that do not contain "organelles with membrane". Also they lack nucleus. Even the DNA molecule is simple and exposed, thus it lies within the nucleoid region of the cell.
They consists of long hair like structures called flagella on it’s outer boundary which help prokaryotes to loco mote and also consists of small “pili” which help prokaryotes to attach to surfaces.
The description presented here matches with the image and hence the image repre
sent here a prokaryotic cell.
Explanation:
This is a commensalism relationship since the remora benefits from the shark but the shark is neither harmed or benefits in any way. :)
Answer:
Hey mate.....
Explanation:
This is ur answer.....
<em>Earthquakes occur on faults. A fault is a thin zone of crushed rock separating blocks of the earth's crust. When an earthquake occurs on one of these faults, the rock on one side of the fault slips with respect to the other. The fault surface can be vertical, horizontal, or at some angle to the surface of the earth.</em>
Hope it helps!
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They will run out. Because nonrenewable means it can't be renewed until like millions of year or so. Hope this helps and You're Welcome! :3
