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quester [9]
3 years ago
14

A dentist wants to know whether posters of calming nature scenes will reduce patient anxiety. Which of these is the most importa

nt Confounding Variable in this experiment?
a) the age of the patient
b) a reduction of anxiety
c) how crowded the waiting room becomes
d) both a and c
Biology
1 answer:
ollegr [7]3 years ago
4 0

Answer:

d

Explanation:

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Answer:

Molecular evidence

Explanation:

Earlier archaea were considered as bacteria because they show some similarities with bacteria like binary fission as mode of reproduction, lack of a nucleus, etc.

Later Carl Woese separated bacteria in a different domain and divide prokaryote into two domains called bacteria and archaea. He separated archaea from bacteria on molecules evidence.

He compaired rRNA sequence between bacteria and archaea and observed that they both differ in rRNA sequence which allowed him to make a separate domain for archaea.

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wlad13 [49]
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Explanation:

4 0
3 years ago
Read 2 more answers
Please help me guys!!
blagie [28]

I don’t really have an answer but I have an explanation

Explanation: In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. These pairs of genes then determine certain physical features or traits.

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erastovalidia [21]

Cellulose belongs to carbohydrates.  

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However, the animals like sheep, cows, and horses can digest cellulose that is why they can acquire nutrients and energy they require from the grass.  


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