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jasenka [17]
2 years ago
9

How and when will the universe end? Of course, this was predicted and verified you could say.

Biology
2 answers:
Monica [59]2 years ago
7 0

Answer:

If the Universe holds enough matter, including dark matter, the combined gravitational attraction of everything will gradually halt this expansion and precipitate the ultimate collapse. Over time, galaxies, then individual stars, will smash into each other more frequently, killing off any life on nearby planets.

Explanation:

puteri [66]2 years ago
4 0
The human race will be extinct before the universe collapses in on itself.
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What form if carbon exists in the atmosphere
Naddika [18.5K]
Carbon is found in the atmosphere mostly as carbon dioxide.
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3 years ago
What are two differences between DNA and RNA
Cerrena [4.2K]
Another difference would be that DNA contains the 5 carbon sugar deoxyribose while RNA usually contains the 5 carbon sugar of ribose. One differs from the other, as ribose has an additional hydroxyl group bonded to one of the carbon atoms, where as deoxyribose does not.
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3 years ago
When the comb jelly, Mnemiopsis leidyi, was introduced into the Black Sea, its population exploded to 500 comb jellies per cubic
nikitadnepr [17]

The answer is invasive species.


Invasive species are species that are not native to specific ecosystem, but they have a capability to spread widely through the ecosystem, This way they can threaten native species of the ecosystem or cause environmental harm. 

<span>After being introduced into the Black Sea, they greatly affect local ecosystem. In the new area, they have no natural predators and are able to spread. If they spread beyond the area they are introduced, they become invasive species which can overgrow native biotopes and are a great threat to the local biodiversity. This could lead to the extinction of some native species.</span>

7 0
3 years ago
Why is the resting membrane potential (Vm) approximately - 70 mV for most cells? Most cells contain a large concentration of Cl-
Yuki888 [10]

Answer:

Option (4).

Explanation:

Cell membrane potential may be defined as the difference in the electric potential between inside and outside of the cell. This potential is important for the action potential.

The resting membrane potential of the cell is -70mV. This membrane potential is maintained by the potassium ions of the cell. The cell membrane are almost 40 times more permeable to potassium ions than sodium ions and makes the cell membrane potential negative.

Thus, the correct answer is option (4).

7 0
3 years ago
What is the meaning of respiration​
Nookie1986 [14]

Answer:

in physiology respiration is the movement of oxygen from the outside environment to the cells with tissues and the removal of carbon dioxide in the opposite direction .. in contrast exhalation is usually a passive process

<em><u>hop</u></em><em><u>e</u></em><em><u> it's</u></em><em><u> helpful</u></em>

7 0
3 years ago
Read 2 more answers
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