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Law Incorporation [45]
2 years ago
10

PLEASE I WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST WORTH 30 POINTS

Biology
1 answer:
zhuklara [117]2 years ago
5 0

Answer:

the second one is 1, the first one is 3, the last one is 5, the fourth one is 2 and the third one is 4

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Use an example how the four earth system are connected
Sophie [7]
Like Geography, climate, times and environment system
4 0
3 years ago
Which line, or band, represents the smallest dna fragment?
love history [14]
During electrophoresis, the fragment that travelled the furthest will be the smallest one. So if it's coming from top to bottom, then the band closest to the bottom will be the smallest one.
8 0
3 years ago
Are the ocean and present atmosphere leftovers from the original atmosphere of earth?
tino4ka555 [31]
The ocean and the present atmosphere themselves are not leftovers from the original atmosphere of Earth. However, they do contain components within them that give us and scientists ideas of what Earth's past atmosphere was like. 

Some example include:

1) Ice cores - scientists may go to Antartica or Alaska and stick this metal tube into the ice to remove what is known as an "ice core". This is then taken back to the lab for analysis. So what happens is that this ice as we know is constantly melting and freezing with different seasons and climate change. So, when the ice starts to crystallize, particles like carbon dioxide, sulfur etc may get trapped as bubbles in the ice. This is what scientists look for in ice coring and this is how they know that Carbon dioxide levels were relatively high back then (Not as high compared to now). 

2) Ocean sediment cores - this is the exact same process of the ice cores except they take cores of sediments (esspecially calcium carbonate that contains oxygen). As you know, CaCO3 is found in the exoskeletons of organisms that die and build up on the ocean floor. 

Those are some of the main ways that the present atmosphere and oceans have leftovers from the original atmosphere of Earth. 

Hope that helped!
8 0
3 years ago
The main function of the rough endoplasmic reticulum is the production of Q
9966 [12]

Answer:

4. Membrane and proteins secreted by the cell

Explanation:

Endoplasmic reticulum (ER) is one of the organelle that makes up the endomembrane system of eukaryotes. The ER is of two types viz: rough endoplasmic reticulum (RER) and smooth endoplasmic reticulum (SER).

The RER is called "rough" because of the ribosome organelles that are attached to its surface. The attachment of this ribosomes (site of protein synthesis) also defines its function. The RER is principally involved in the production of protein. Hence, the Rough Endoplasmic Reticulum functions mainly in the production of membrane and proteins secreted by the cell.

6 0
3 years ago
The water-treatment in which the start of forced into the air is Called
sergeinik [125]

i think its called rain but i really not too sure


7 0
3 years ago
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