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sertanlavr [38]
3 years ago
13

30. An endothermic reaction is one in which energy is absorbed. Which of the following is an endothermic reaction in terms of la

tent heat?
A- Liquid water changes to water vapor.
B- Liquid water changes to solid water.
C- Water vapor changes to liquid water.
D- Water vapor changes to solid water.
Biology
2 answers:
pickupchik [31]3 years ago
5 0
The answer is C.........
Alekssandra [29.7K]3 years ago
3 0

Answer:

(C) changing frost to water vapor

Explanation:

jus took the test

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The Griffith experiment showed that certain strains of Streptococcus bacteria could transform from one strain to another when co
AnnZ [28]

Answer:

The options

A. It suggested that DNA is the

"transforming principle."

B. It confirmed that DNA is a double helix composed of two antiparallel strands.

C. It demonstrated that DNA consists of four nucleotides where the proportions of adenine/thymine and cytosine/guanine remain constant.

D. It proved that DNA is

semiconservative replication.

The CORRECT ANSWER IS A.

A. It suggested that DNA is the

"transforming principle."

Explanation:

A. It suggested that DNA is the

"transforming principle."✔

Griffith's experiments proved

that transformation can be seen in

pneumococcus, but gave no proof based on what molecular background the transformation was

WHILE, the Avery MacLeod-McCarty experiments proved that DNA was THE TRANSFORMING PRINCIPLE.

B. It confirmed that DNA is a double helix composed of two antiparallel strands.❌

These findings were established by James Watson, Francis Crick, Maurice Wilkins and Rosalind Franklin

C. It demonstrated that DNA consists of four nucleotides where the proportions of adenine/thymine and cytosine/guanine remain constant.❌

The findings was established by Erwin Chargaff.

D. It proved that DNA is semiconservative replication.❌

The findings was established by Matt Meselson and Franklin Stahl.

5 0
3 years ago
What modern day practice helps prevent an inadequate production of thyroid hormones?
Mama L [17]

Iodized salts helps to prevent an inadequate production of thyroid hormones .

<h3>What is iodized salts ?</h3>

Iodized salt is a table salt . it is a mixture of very little amount of sodium iodide and potassium iodide .

It helps to prevent iodine deficiency .

It is a micronutrient and dietary mineral that is naturally present in the food supply .and also it is a heavy element .generally found near sea coasts .

Iodine deficiency disease includes hypothyroidism .

<h3>What is hypothyroidism ?</h3>

It occurs due to less secretion of thyroid hormone caused by iodine deficiency .it causes stunted growth . it shows low rate of metabolism .

Hypothyroidism includes diseases like myxoedema or gull's disease , cretinism .

Inadequate supply of iodine in diet causes enlargement of the gland known as simple goitre.

<h3>Thyroid hormones :</h3>

It is secreted by endocrine glands known as thyroid gland . it includes two types of hormones known as thyroxine and calcitonin .

Thyroxine is an iodine containing hormone known as tetra-iodothyroxine(80%) and tri-iodothyroxine (20%).

calcitonin is secreted from thyroid gland and is polypeptide hormone .

Learn more about thyroid hormones here:

brainly.com/question/9251938

#SPJ4

4 0
1 year ago
Enter a nuclear equation for the fusion of two h-2 atoms to form he-3 and one neutron. express your answer as a nuclear equation
aliya0001 [1]

The nuclear equation that represents the fusion of two H-2 atoms to form He-3 and one neutron is

\frac{2}{1} h + \frac{2}{1} h >  >  >  >  \frac{3}{2} he   +  \frac{1}{0} n

In a nuclear reaction the nuclides are represented with the chemical symbol preceded by a superscript that represents the mass number (number of protons plus neutrons) and a subscript that represents the atomic number (number of protons).

<h3>What is a Nuclear reaction ?</h3>

A nuclear reaction is a process in nuclear physics and nuclear chemistry where two nuclei or a nucleus and an outside subatomic particle meet to create one or more new nuclides. Consequently, at least one nuclide must change throughout a nuclear reaction.

Learn more about Nuclear reaction here:

brainly.com/question/984564

#SPJ4

6 0
1 year ago
Berkowitz and LePage (1967) found that frustrated men delivered more shocks when:_____
Y_Kistochka [10]

Answer: d. guns happened to be in the room.

Explanation:

The weapon effect theory is a theory of social psychology. It suggests that mere presence of weapon or its picture can lead to aggressive behavior or may produce shock in human participants.

This theory was demonstrated by the Leonard Berkowitz and Anthony LePage in 1967. These researchers selected 100 male university students for one laboratory session.

These were randomly assigned to receive one or seven shocks. These shocks generated by the weapon those were kept on the laboratory and were related to belong to one of the peer. This will may generate mental shock among the students.

3 0
3 years ago
portion of the serous membrane that covers and adheres to the lung is called the ________. The portion of the serous membrane th
natulia [17]
<h2>Visceral pleura</h2>

Explanation:

The portion of the serous membrane that covers and adheres to the lung is called visceral pleura

  • Pleura are the pair of membranous linings surrounding the lungs
  • The visceral pleura covers each lung surface, and the parietal pleura covers the inner surface of the thoracic cavity
  • The visceral pleura is a delicate membrane which dips into the fissures between the lobes of the lung
  • Pleura allows the lungs to move inside the body cavity without friction as friction would cause damage to the lungs and the tissue in the chest wall
3 0
3 years ago
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