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Rainbow [258]
3 years ago
15

What is a scientific experiment? A statement that tries to answer a scientific question A rigorous procedure that produces scien

tific data A final decision that describes a scientific model A collection of data that generates a scientific observation
Biology
2 answers:
lidiya [134]3 years ago
8 0

D.) A collection of data that generates a scientific observation

Nana76 [90]3 years ago
6 0

Answer: A rigorous procedure that produces scientific data.

Explanation:

A scientific experiment can be define as the a detail procedure which involves a step by step scientific methodology so as to find answers related to the scientific questions.

The data produced after the implementation of the scientific methodology can be useful for answering the questions related to the cause of the natural phenomena or event.  

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The Gram stain technique is valuable in distinguishing Bacteria from viruses whether or not a bacterium has pili. The flagella o
erastova [34]

Answer:

False

Explanation:

Gram stain technique is a method use to classify bacteria into large groups base on their different cell wall components. It differentiate gram positive and gram negative by coloring them with red or Violet colors.

Gram stain is use for identification and classification of bacteria.

Gram positive stain violet due to presence of thick layers of peptidoglylcan in their cell walls and gram negative stain red due to thin layers of peptidoglylcan in their cell walls.

8 0
3 years ago
Which answer helps to explain why all living cells need ph buffers?
defon

Answer;

Amino acid side chains have many carboxyl and amino groups.

Explanation;

-A buffer solution is a solution that resists changes in pH when small quantities of an acid or an alkali are added to it. It is a chemical substance that helps maintain a relatively constant pH in a solution, even in the face of addition of acids or bases.

-Buffering is important in living systems as a means of maintaining a fairly constant internal environment, also known as homeostasis.Small molecules such as bicarbonate and phosphate provide buffering capacity as do other substances, such as hemoglobin and other proteins.

- Protein buffer systems depend upon proteins, as opposed to nonprotein molecules, to act as buffers and consume small amounts of acid or base. Since amino acids have the capability of reacting with both acid and base, they naturally act as buffers.

4 0
3 years ago
What type of rock is pictured here? large crystals coarse texture evidence of rapid cooling fine texture evidence of slow coolin
MrMuchimi

Answer:

Large Crystals, course texture, and I think evidence of slow cooling

8 0
3 years ago
Read 2 more answers
Which statement best explains how tectonic activity affects long-term climate change?
steposvetlana [31]

Answer: The movement of continents changes wind patterns and ocean currents.

hope this helps!

Explanation:

4 0
3 years ago
Read 2 more answers
1. Explain how a paleontologist might use absolute dating techniques to determine the age of a fossil.
sergey [27]

Here are your answers:

1. Paleontologist use the technique called "relative dating" which is when scientist compare rocks to determine the age. So if you have a rock which has a similar surface to another rock you could determine the age of that rock. You could also use the technique called the "radiometric dating" by measuring the amount of isotopes in the rock.

2. You can determine the age of a rock by "looking how rough or smooth the rocks are"... so lets say you fine a rock that has many points, sides, and rough edges which means the rock is actually pretty young so it was recently created and most likely a sedimentary rock, but if you find a rock that has smooth sides and no rough edges which would mean the rock is pretty old rocks could go up to thousands of years old and if a rock is that smooth it could be up too a million years old.

Hope this helps!

6 0
3 years ago
Read 2 more answers
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