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Rainbow [258]
4 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]4 years ago
8 0

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

Nana76 [90]4 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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Has an atmosphere of hydrogen, helium and methane that makes it appear blue, and is the only planet tilted sideways
Elanso [62]
The planet is Uranus
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All deserts have high daytime temperatures.
Vesnalui [34]

Answer:

False, I got it right on my test

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3 years ago
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When Leslie goes to the eye doctor, her doctor puts drops in her eyes to dilate her pupils. This drug is a sedative that has its
pishuonlain [190]

Answer:

Iris.

Explanation:

Eye is one of the most important sense organ of the body that helps to receive the light and also helps in the maintenance of the body equilibrium. The pupils regulate the amount of the light that enters in the eyes.

The Leslie has some eye problem and doctors use a sedative in her eyes. The sedative drug has the largest effect on the iris of the eye. The iris decides the color of the eye and also regulate the proper functioning of the pupil of eye.

Thus, the correct answer is iris.

6 0
3 years ago
Describe the situations in which a normal human cell would enter the cell cycle and undergo mitotic cell division. Explain how s
Ganezh [65]

Answer: An example of a specific case is when a skin lesion occurs. Through mitosis, new skin cells are generated to repair damaged tissue. These cells have to be genetically identical to each other. The spindle fibers are structures formed by microtubules extending from one pole to another to orient the duplicated chromosomes in the spindle, bringing them to the position they occupy during metaphase.

Explanation:

Mitosis is a process of cell division that occurs in eukaryotic cells, i.e. cells that have a nucleus where their genetic material is located. This process generates two identical cells with the same DNA, that is, with two identical nuclei, so it does not provide genetic variability except in case of specific mutations. The objective of mitosis is cell multiplication while preserving genetic information. But in general, in mitosis there is an equal distribution of the cell nucleus as well as the rest of the cell content.

The phases of mitosis are as follows:

  • Interface: The cell duplicates its organelles and its DNA to have twice everything before division.
  • Prophase: The nuclear membrane breaks, the chromosomes condense, the centrosome duplicates and migrates to the opposite poles of the cell forming microtubules. Also, fibers of the mitotic spindle are formed.  
  • Prometaphase: The microtubules invade the space where the genetic material is.
  • Metaphase: The replicated chromosomes line up in the middle of the cell, called the equatorial plane.
  • Anaphase: Microtubules separate chromosomes towards the opposite poles.  
  • Telophase: The nuclear envelope is re-formed from the remaining fragments of the original.
  • Cytokinesis: A cleavage groove is created in the common cytoplasm of the two new cells where the chromosomes were aligned. The cytoplasm is thus strangled until the membrane allows total separation.

<u>Mitosis is then a cellular process that occurs in multicellular organisms to repair damaged tissue, or for growth or development.</u> An example of a specific case is when a skin lesion occurs. When a person suffers an injury, many reactions take place in the repair process to repair the damage including inflammatory, proliferative, and remodeling phases.  <u>Through mitosis, new skin cells are generated to repair damaged tissue. These cells have to be genetically identical to each other, to have the same genetic fingerprint and the same function.</u>

The spindle fibers are structures formed by microtubules extending from one pole to another. The kinetochore microtubules attach to the kinetochore, a structure that forms at the centromere of each duplicated chromosome, <u>and orient the duplicated chromosomes in the spindle, bringing them to the position they occupy during metaphase and attracting the newly separated chromosomes to the poles during anaphase</u>.

5 0
3 years ago
What is the role of bacterial proteins in DNA cleavage
neonofarm [45]
The role of the bacterial proteins in DNA cleavage is to describe the sequence of bases present at the sticky ends of the cleaved double strand of DNA.
~Deceptiøn
4 0
3 years ago
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