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larisa86 [58]
2 years ago
7

3. How does oxygen move across the membrane?

Biology
2 answers:
podryga [215]2 years ago
6 0

Oxygen moves across the membrane from the place  where it's higher in concentration to the place with lower O₂ concentration through a process called diffusion.

svetoff [14.1K]2 years ago
6 0

Answer:

Something BaDdIe TiNgZ but about 2,334,424

Explanation:

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The answer is A. a tissue

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What energy transformations are going on within the skateboarder’s body during this process?
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Which of the following environmental factors likely led to the exponential growth seen in fireweed after the Yellowstone wildfir
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Decrease in competition from other plants.

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3 years ago
Mitochondria and chloroplasts have a number of features in common. Which of the following is NOT one of them?
JulijaS [17]

Both are found in all eukaryotic cells.


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3 years ago
A scientist isolates mRNA from the cytoplasm of some mouse cells. She separately isolates the DNA from mouse cells and heats the
tatyana61 [14]

Answer:

Answer is explained below.

Explanation:

A. The  observed  single  stranded  regions  are  found  in  the  mRNA.

B. The  loops  represent  introns  (Non-coding  portions  of  the  mRNAin primary  transcript ).  The  intron  sequences  are  removed  to  form  a mature mRNA  by  splicing.

C. If  the  scientist  use  RNA  and  DNA  from  bacteria,  loops  cannot be seen. Because introns are produced in only eukaryotes but not in prokaryotes.

5 0
3 years ago
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