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ddd [48]
3 years ago
15

1.) The difference in the brightness of two stars with the same surface temperature is attributable to their _____.

Biology
1 answer:
VMariaS [17]3 years ago
4 0

Answers: 1 .The difference in the brightness of two stars with the same surface temperature is attributable to their sizes.( last choice)

2.Most responsible for the formation of a star is gravitational force.(second choice )

3. Blue ( last choice)

4.

A spinning neutron star that appears to give off radio wave pulses is called a pulsar ( third choice)

5.Greater redshifts in the spectra of galaxies indicate faster speeds ( first choice)

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Answer:

D

Explanation:

because the stars dont move the earth does

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3 years ago
If you were looking at a cell with a microscope,how would you know if you were looking at a prokaryotic cell or eukaryotic cell?
Anika [276]

Answer: we can see the nucleus obviosly in the eukaryotic cell

7 0
3 years ago
cual es la relacion que establecen los organismos de la comunidad de una laguna, un bosque,un desierto.
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<span>Uno vive en tierra seca y cálida, por lo que realmente no necesitan agua donde los animales del bosque necesitan agua más que los animales en el desierto.</span>
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3 years ago
How are biotic factors in the marine ecosystem responsible for bringing carbon-dioxide into the ocean?
Wewaii [24]

Answer:

Marine ecosystem have biotic organisms like phytoplankton and photosynthetic algae that do photosynthesis and converts the atmospheric carbon dioxide into organic matter most of the carbon dioxide is released when other organisms eat phytoplankton and release the carbon dioxide through respiration.

But some of the algae and phytoplanktons die naturally get down to the bottom of the ocean where they make carbon sink. Some organisms accumulate CO₂ in their exoskeleton that is made up of calcium carbonate.  

Therefore this use of carbon by living organisms in oceans brings carbon dioxide from the atmosphere to oceans. This is why the ocean plays a critical role in the carbon cycle and called carbon sink.

7 0
3 years ago
30 POINTS
VladimirAG [237]

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if I remember correctly it was a and c

Explanation:

i going by what my sister did yesterday I think she got it right

7 0
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