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Papessa [141]
4 years ago
6

Tension on the vocal cords is regulated by the

Biology
2 answers:
AysviL [449]4 years ago
8 0

Answer:

movement of the arytenoid cartilages and contraction of laryngeal muscles.

Explanation:

umka2103 [35]4 years ago
6 0

movement of the arytenoid cartilages and contraction of laryngeal muscles.
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Based on the reactivity of li, na and k. Predict the behavior of rb and cs. Why would we not do these experiments in the freshma
Ierofanga [76]

Rubidium and caesium are less reactive in comparison to Lithium Sodium and potassium. These experiment should not be performed in freshmen Chemistry lab because Lithium Sodium and potassium are highly reactive elements.

The same group contains the elements lithium, sodium, potassium, rubidium, and cesium. These are all components in group 1.

When we move from top to bottom in the group, lithium is at the top and caesium is at the bottom. The element becomes less reactive. The ionization energy drops, which causes a drop in reactivity.

From top to bottom in the group, the element's size grows. The element becomes less reactive as a result of its larger size since the ionization enthalpy is decreased. Due to the three compounds' extreme reactivity—lithium, sodium, and potassium—when they are left open, they react even with air, making them inappropriate for use in freshman chemistry laboratories.

To know more about group 1 elements, visit,

brainly.com/question/24298610

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3 0
1 year ago
Proteins do all of the following things in the body, except which of the following
Anon25 [30]
Please state the following :)
5 0
3 years ago
Alcohol can be considered a __________. A. Gateway drug B. Hallucinogen C. Barbiturate D. None of the above
kozerog [31]

<u>Answer</u> : option A gateway drug


<u>Explanation</u>:

  • A gateway drug is considered to be a type of habit forming drug which itself may not be addictive in nature but their use may lead to the person getting addicted to other drugs.
  • The increase in probability of using other illegal drugs when a person is using a gateway drug is because of the alteration in the brain which leads to an inclination towards drug usage and a carefree behavior.
  • Besides alcohol, marijuana and tobacco are also considered to be gateway drugs.
  • It has been shown that the use of alcohol acts a gateway for many drugs such as cocaine.
  • The gateway drug theory has stated if any of the gateway drugs or a mixture of them is introduced into a life of a teenager then it leads to an increased chances of experimentation with other drugs in the future.
  • Since, alcohol is linked to an increased probability of using illegal drugs in the future, it is considered to be a gateway drug.

8 0
4 years ago
DNA that is derived from the DNA of two or more different species is called
e-lub [12.9K]

Answer:

Recombinant DNA

Explanation:

Recombinant DNA (or rDNA) is made by combining DNA from two or more sources. In practice, the process often involves combining the DNA of different organisms.

4 0
3 years ago
How many daughter cells are produced in mitosis? Are they diploids or haploids? How do you know?
aksik [14]

Answer:

25

Explanation:

chomisons are in a cell

6 0
3 years ago
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