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Firdavs [7]
3 years ago
12

Need help with just 9-10 thanks

Biology
1 answer:
iren [92.7K]3 years ago
6 0

Answer:

9. organelles

10. cells--> tissues--> organs--> systems

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An interesting observation made by the firefighters was that some parts of the forest seemed to escape the flames. The crown fir
Savatey [412]

Answer:

According to the previous observational study it is possible to notice that thinning determined in great way the rate of trees that survived the fire.

Explanation:

In general the trees that had been previously cut, were the ones that presented more resistance to the fire, while the trees that had not been thinned were the ones that were severely affected in the spreading conflagration. Reason why in comparison of these two samples, it would be possible to conclude that previously cutting down trees can survive better to the spreading fire.

8 0
4 years ago
What happens during the initiation step of DNA transcription? A ribosome attaches to the initiation codon of a completed mRNA st
Amanda [17]

Answer:

<u>A portion of the DNA unwinds and RNA polymerase attaches to the DNA within the transcription bubble.</u>

Explanation:

Transcription is the process in which DNA template is used to synthesize  mRNA.

There are three steps of transcription:

  • <u>Initiation</u>

It is the process in  which a portion of DNA unwinds and RNA polymerase binds to the promotor region on the DNA.

  • <u>Elongation</u>

It is the process in which RNA polymerase moves along the DNA template and synthesizes mRNA. During this process, unwinding of double stranded DNA takes place.

  • <u>Termination</u>

As the RNA polymerase moves along the DNA template, it finally reaches a termination signal and then stops synthesizing. It is followed by the detachment of the newly formed mRNA and RNA polymerase from the DNA.

<u>QUESTION:</u>

  • <u> A ribosome attaches to the initiation codon of a completed mRNA strand.</u>

This is the incorrect answer choice as this process does not happen in the process of transcription. This event happens<u> in the process of translation in which mRNA is used to synthesize proteins or amino acids. mRNA attaches to ribosome during this process.</u>

  • <u>RNA polymerase moves along the template strand of the DNA creating an mRNA strand.</u>

This is the incorrect answer choice as this event takes place in the process of elongation.

  • <u>A portion of the DNA unwinds and RNA polymerase attaches to the DNA within the transcription bubble.</u>

This is the<u> correct answer choice as this event takes place in the process of initiation of transcription</u>

  • <u>The mRNA detaches from the RNA polymerase as the RNA polymerase leaves the DNA strand.</u>

This is the incorrect answer choice. This event takes place in the event of termination of transcription.

3 0
3 years ago
⭐️HELP PLEASE<br><br> Why did prokaryotic cells come before eukaryotic cells?
stiks02 [169]

Answer:

The complex eukaryotic cell ushered in a whole new era for life on Earth, because these cells evolved into multicellular organisms. Evidence supports the idea that eukaryotic cells are actually the descendents of separate prokaryotic cells that joined together in a symbiotic union.

6 0
3 years ago
Read 2 more answers
List three ways in which rods and cones differ in structure or function
qwelly [4]

<span>1.       </span>Cones perceive light in color while rods perceive light in black and white.

<span>2.       </span>Rods can perceive dim light, unlike cones. The rods are located at the edges of the eyes. This is why it easier to perceive an image in the dark through the corner of the eyes.

<span>3.       </span>The discs that compose the cones are usually partially open to the surrounding vitreous fluid while those of the rods are closed.


8 0
4 years ago
Select the correct answer.
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Answer: A mutualistic and A a decrease in the number of corals, so buy coral to help the local economy

Explanation:

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