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hodyreva [135]
3 years ago
7

If a researcher electrically stimulates the _____ in an animal, the animal will immediately wake up and be alert.

Biology
1 answer:
jeka943 years ago
6 0
If a researcher electrically stimulates the reticular formation in an animal, the animal will immediately wake up and be alert. Its purpose is to have some control of sensory signals and thus has the ability to alert the body when it is tired or needs to be awake.
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design an experiment to test substances X, Y, and Z to determine which one is a catalyst for the reaction.
Fynjy0 [20]

Answer:

A+B C. Only one of the unknown substances is a catalyst, and the others are nonreactive with A, B, or C. When 10 mL of A is added to 10 mL of B the reaction takes twenty seconds. Bubbles form when the product C is created. The student prepares three test tubes, each containing both reactants A and B. She adds unknowns X, Y, and Z to test tubes 1, 2, and 3, respectively.

8 0
3 years ago
Arguably, the way prokaryotic operons are structured has evolutionary advantages. Based on our discussions in class, briefly des
Naddik [55]

Answer:

Advantage of gene expression in prokaryotes is it occurs faster than in eukaryotes because  transcription and translation occur simultaneously in the cytoplasm, and regulation occurs at the transcriptional level. Whereas disadvantage of gene expression in prokaryotes is that there is no post translational modification and low expression of genes.

Explanation:

Prokaryotic organisms are single-celled organisms that lack a cell nucleus, and their DNA therefore floats freely in the cell cytoplasm. To synthesize a protein, the processes of transcription and translation occur almost simultaneously. When the resulting protein is no longer needed, transcription stops. As a result, the primary method to control what type of protein and how much of each protein is expressed in a prokaryotic cell is the regulation of DNA transcription. All of the subsequent steps occur automatically. When more protein is required, more transcription occurs. Therefore, in prokaryotic cells, the control of gene expression is mostly at the transcriptional level. whereas in eukaryotes, the DNA is contained inside the cell’s nucleus and there it is transcribed into RNA. The newly synthesized RNA is then transported out of the nucleus into the cytoplasm, where ribosomes translate the RNA into protein. The processes of transcription and translation are physically separated by the nuclear membrane; transcription occurs only within the nucleus, and translation occurs only outside the nucleus in the cytoplasm.

6 0
3 years ago
Pls help !!!!!!!!!!!!!
dalvyx [7]

I have attached my resume for your reference and

6 0
3 years ago
A hypothesis that has been verified by many scientists.
butalik [34]
A hypothesis that has been verified by many scientists is called a scientific theory. Scientific theory can be derived from careful examination of facts and thorough testing and proving of the different scientists. A hypothesis is an intelligent guess about a certain situation or problem. Whenever this hypothesis would be verified many times by many scientists, this would be<span> under now the category of scientific theory.</span>
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3 years ago
How are humans able to see Rainbows? 
Mrrafil [7]

We see rainbows when the son is behind us and some type of water or rain is in front of us. When the sun light hits a raindrop it's refracted and is changed in direction.




(and we see them with our eyes mannnn or womannnn)

8 0
3 years ago
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