Answer:
if the experiment continued under the same conditions
Explanation:
you can only go on to prove something if its under the same conditions
i think it is called the nuclear envelope, but I am not sure...
Hope this helped :)
Answer:
The correct answer is D: They provide the water needed.
Let me know if this helps!
Molecules stop moving in and out the cell at equilibrium
Answer: Option D.
The lub heart sound is due to the closing of atrioventricular valves.
Explanation:
Heart sounds are noises that are generated from beatings from heart and from blood that flows through it. The heart sound reflect the turbulence generated when the heart valves snap shut. Lub is the first heart sound also called S1 and it is caused by turbulence and closure of the atrioventricular valves(mitral and triscupid valves) at the start of systole. The second sound is the dub sound which caused by the closing of aortic and pulmonic valves at the end of systole.
