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dezoksy [38]
3 years ago
14

In 1953, who developed the model that is shown below?

Biology
2 answers:
Diano4ka-milaya [45]3 years ago
7 0

The right answer is Watson and Crick.

The famous science journal "Nature" published an article of two pages, accompanied by one figure, titled "A Structure for Deoxyribose Nucleic Acid". Its authors are James Dewey Watson (24) and Francis Crick (36).

They synthesized the work of their scientific colleagues and were able to explain with a remarkable art of deduction how the DNA molecule contained in the cells of all living beings was duplicated.

juin [17]3 years ago
5 0
<span>"This is the DNA double helix, discovered by Watson and Crick (and Wilkins and Franklin)."</span>
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What is cell answer it thank u good day​
Sidana [21]

Answer:

cell is the structural and fundamental unit of life.

Explanation:

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What is evolution that occurs as a result of chance events?
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Genetic drift= Evolution that occurs as a result of chance events.
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Which of the following statements about prescribed burns is true? a. Prescribed burns will always have detrimental effects on ec
tankabanditka [31]

Prescribed burns are referred to as ridding of the forest by burning the dead leaves, tree limbs, and preventing the destructive wildfire.

The prescribed burns can help in maintaining healthy ecosystems.

The prescribed burns can be explained as:

  • The prescribed fire can reduce hazardous fuels, protect the human communities from wildfire.

  • The prescribed burns minimize the spread of pest insects and any dangerous diseases.

  • Prescribed burns improve the habitat for the endangered species, and remove the unwanted species that threaten the native species to ecosystems.

Thus, prescribed burns are useful to maintain a healthy ecosystem.

To know more about prescribed burns, refer to the following link:

brainly.com/question/6360948

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3 years ago
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In observing epithelial cells under a microscope, the cells are arranged in a single layer and look tall and narrow, and the nuc
KonstantinChe [14]

Answer:

Tall, narrow cells arranged in a single layer correspond to a simple columnar epithelial tissue.

Explanation:

According to the <u><em>arrangement of cells</em></u>, epithelial tissues can be classified as:

-         Simple epithelium, formed by a <u>single cellular layer</u> which is in contact with the basement membrane

-         Stratified epithelium, formed by <u>two or more cellular layers</u>. The <u>cellular shape and high vary </u>from one layer to the other. In classification, only the superficial layer is considered.

-         Transitional epithelium. In this case, the <u>epithelial cells vary</u> in shape and size allowing the tissue to stretch.

Classification of epithelial tissues <em><u>according to the cell shape</u></em>:

-         Squamous epithelium: Epithelial cells are <u>flat and thin</u>. Their nucleus is <u>narrow and centered</u>. This epithelium can be found in <em>endothelium, mesothelium, pericardium, and peritoneum.</em>

-         Cuboidal epithelium: Epithelial cells are <u>cubic shaped</u>: their width, length and high are about equal. Their nucleus is <u>rounded and centered</u>. This epithelium can be found in <em>kidney tubules, Malpighi tubules, thyroid gland, salivary glands, and pancreas</em>.

-         Columnar epithelium: Epithelial cells are <u>tall, rectangular and/or column-shaped</u>, longer than width. Their nucleus is <u>ovoid and near to the base</u>. This epithelium can be found in the <em>stomach, intestine, duct of glands, Fallopian trumps</em>, etc. Their functions are related to secretion, absorption, protection, motility.

Types of epithelium tissue:

-         Simple squamous epithelium

-         Simple cuboidal epithelium

-         Simple columnar epithelium

-         Stratified squamous epitheliums

-         Stratified cuboidal epitheliums

-         Stratified columnar epitheliums

-         Transitional epithelium

5 0
3 years ago
Will give brainliest to a clear explain answer.
mr Goodwill [35]

The right answer is internal thermoreceptors


The olfactory receptor adapts to the external environment in which we are, for example, when we put perfume on ourselves, we feel it at the beginning and then we do not smell it anymore.

External thermoreceptors such as those located in the hand adapt to the temperature to which it is in contact. When we put our hands on a cold object we just feel it at the beginning.

The good example to explain the non-adaptability of the internal thermoreceptors is when you have a fever, for several days you have this sensation of heat inside our body. It disappears only when the temperature drops

7 0
3 years ago
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