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stepladder [879]
2 years ago
12

What is the probability for an average star to supernova?​

Biology
1 answer:
Svetradugi [14.3K]2 years ago
3 0

Answer:

Key concepts and summary. A supernova occurs on average once every 25 to 100 years in the Milky Way Galaxy.

Explanation:

please give me a heart

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Can i get some help with these 3 questions .
creativ13 [48]

Answer:

1. D. Burning Coal and Natural Gas

2. D. Larger; Louder

3. D. It has a lower pitch and is quieter than the first note.

Explanation:

Not 100% certain of number 3, but I'm pretty certain it is correct. 1 and 2 are for sure correct.

5 0
3 years ago
The branch of biology that deals with heredity and variation is
Karolina [17]
I thinks it's Genetics. I might be wrong tho
5 0
3 years ago
PLEASE HELP!!!!!!!
vovangra [49]
1. The correct answer is; are body cells is going to shrink. <span>Salty seawater is a hyperosmotic solution, meaning that it has more solutes than the cell inside. The water will move (from the cell) via osmosis in order for the solutions to reach equilibrium. Also, salty solution exerts more pressure on the of the cell, so the cell will shrink.</span>
<span>
2. The correct answer cells in the fish will stay the same size. This will occur because both solutions, freshwater lake and river have similar (or equal) solute concentrations. Those solutions are called isosmotic. There is no movement of water or the solutes, so the cell stays the same.</span>

3. The correct answer is to swell. <span>This will happen because sea star egg has the same solute concentration as its first environment-ocean meaning that this solution is hyperosmotic comparing to the lake (ocean is saltier than the lake, it has more solutes). When you put the sea star egg in the lake, the water from the lake will move (via osmosis) into the egg, to reach equilibrium. Water will cause the cell to swell.</span>
7 0
3 years ago
Read 2 more answers
When a cell was examined under a microscope, it was found that it did not have a cell wall . Which of these is likely to be miss
shtirl [24]

Answer:

When a cell was examined under a microscope, it was found that it did not have a cell wall . It has a cell membrane which shows the viewed cell under microscope is an animal cell

Explanation:

Only plant cell has cell wall which gives rigidity and shape to the cell unlike animal cell which has a cell membrane. The cell would comprise of chloroplast, nucleus, golgi apparatus, mitochondria among others

4 0
2 years ago
What is the relationship between a person's PULSE RATE and his or her HEART BEAT? A. The heart beat is always double the pulse r
3241004551 [841]

Answer:

B. The heart beat and pulse rate may change, but are always equal.

Hope this helps :D Have a fantastic day

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2 years ago
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