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Kazeer [188]
3 years ago
13

Match the elements of good experimental design with the examples to the right. different batches of chloroplast Representative k

nown Zn inhibition of PET reactions Refutable hypothesis random order of samples Well controlled use of leaves from Statistics applicablemany spinach plantsdoes PET rate increase or Reproducibledecrease with variable literature on herbicide Minimization of bias effect on PET

Biology
1 answer:
andre [41]3 years ago
6 0

Answer:

See attachment below

Explanation:

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Which of the following investigators was (were) responsible for the following discovery? In DNA from any species, the amount of
Zarrin [17]

Answer :Erwin Chargaff   a Biochemist

Explanation:

He formulated the base paring of double helix of DNA. He reasoned that since the percentage of four  DNA  bases are of this proportions in human;

                                  Adenine=30.9% and Thymine =29.4%;

                                  Guanine=19.9% and Cytosine =19.8%

Then,  the amount of adenine will always be equal to thymine,

And the amount of Guanine equals to cytosine based on this percentages of distribution.  

(Adenine and Guanine are large, molecule of Purines, while thymine and Cytosine are Pyrimidine)  

 

He concluded (although scientist believed, he did not explicitly stated this) that this should be the base paring patterns in DNA molecule. This is the first Chargaff Rule.

His second rule is that the DNA composition, in the relative amount of the four bases Adenine, Thymine, Cytosine and Guanine varies in proportion from one organisms to another. And this is the basis of molecular diversity.

6 0
3 years ago
Reabsorption is the movement of substances from the ______ to the ______.
lbvjy [14]
Reabsorption occurs during the movement of substances from the proximal convoluted tubule to the distal convoluted tubule.....   in the kidney
6 0
3 years ago
A musk ox and the Alstroemeria flower have physical structures and organs that have similar functions. Provide two examples of s
Levart [38]

Answer:

Multicellular organisms: Both the plant and the ox are made up of more than one cell.

Both the ox and the plant need to breath somehow  (use air).

Explanation:

3 0
2 years ago
The bacteria Lactobacillus acidophilus are frequently used in the production of yogurt. These bacteria use lactic acid fermentat
Shtirlitz [24]

Answer:

A. The bacteria could no longer regenerate the NAD+ needed for glycolysis, so it would stop producing ATP.

Explanation:

According to the given information in this question, Lactobacillus acidophilus is a bacterium species that uses the lactic acid fermentation when there is no oxygen in its cell i.e. under anaerobic conditions. This means that it converts glucose to lactic acid during this anaerobic respiration process.

However, if the lactic acid fermentation pathway were blocked under an anaerobic condition, this means that it will be no longer be able to perform respiration and hence stop production of ATP. This is because the bacteria will no longer regenerate the NAD+ (electron acceptor) needed for glycolysis, so it would stop producing ATP. Note that, all living organisms, whether aerobic or anaerobic, undergo GLYCOLYSIS, which is the first stage of cellular respiration.

5 0
2 years ago
Read 2 more answers
Can someone help MMEE!
9966 [12]

Answer:

D

Explanation:

This may seem difficult to answer at first, cuz A and even B sounds plausible, but the relative direction of where she's drawing the picture is not known. And we know that the sun does not rise and set in the same place everyday. So the best answer would be D

6 0
3 years ago
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