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Paraphin [41]
3 years ago
9

Which answer below accurately explains a scientific theory.

Biology
1 answer:
n200080 [17]3 years ago
5 0

Answer:

I think it is c since "A scientific theory is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results. Where possible, theories are tested under controlled conditions in an experiment. "

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How do fish live in the nature without dying out of eating all the time?​
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Answer:

Fish not only live in water, but they get oxygen from water. They breathe by taking water into their mouths and forcing it out through gill passages

Explanation:

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The name for continents in one landmass surrounded by gigantic ocean
andre [41]
A Pangaea...Hope This Helped U ♡
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3 years ago
Is dark reaction autotrophic or heterotrophic
Zepler [3.9K]
Autotrophic.

Dark reaction happens in the photosynthetic process of plants or autotrophs.
(a) A giant redwood tree = Autotroph
(b) A spider = Heterotroph
(c) A rose bush = Autotroph
(d) A mushroom = Heterotroph
(e) A blue whale = Heterotroph
<span>Autrophs are the organisms that have the capacity to form their own food from inorganic substances like the carbon dioxide. </span>
<span>Heterotrophs are the organisms that cannot produce their own food but depends on other animals or plants for their nutritional needs.</span>

8 0
3 years ago
a bacterium has a faulty lac operon in which there is a structural defect in the operator. in this bacterium:
wariber [46]

A bacterium has a faulty lac operon in which there is a structural defect in the operator. In this bacterium there is a structural problem with a segment of DNA that binds a repressor.

  • A protein known as a repressor binds to an operator site. The operator in this instance (and numerous others) is a section of DNA that lies just downstream of the RNA polymerase binding site or overlaps with it (promoter). In other words, it lies between the operon's promoter and its genes.
  • The repressor protein inhibits the synthesis of messenger RNA by attaching to the promoter region of the gene(s) (mRNA). The control of gene expression in cells requires repressor proteins.
  • Thus, by physically impeding the RNA polymerase's ability to operate, these repressor proteins stop the gene from being transcribed.

To learn more about DNA.

brainly.com/question/316480

#SPJ4

4 0
1 year ago
The two major divisions of the peripheral nervous system are the _______ and _______ divisions.
Afina-wow [57]
Efferent and Afferent.
7 0
3 years ago
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