1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alina1380 [7]
3 years ago
8

Please helppp!

Biology
2 answers:
Hunter-Best [27]3 years ago
7 0
Well, I am not 100% sure but I would go with D.
Sliva [168]3 years ago
4 0

Answer: Option (A)

Explanation: The interior of the earth radiates a huge amount of energy due to the presence of molten heavy materials namely iron and nickel. This heat energy drives the plates to move over the mantle.

This radiated energy plays a significant role in increasing the temperature at the lower atmosphere. At the lower atmosphere majority of the air is concentrated due to its high density and are attached to the ground because of gravity.

This radiated heat energy then heats up this air particles that leads to an increasing air pressure and temperature.

The heat from the sun is less significant in warming up the air in the lower atmospheric region.

Thus, the correct answer is option (A).

You might be interested in
What is the caloric value of a carbohydrate<br>​
mafiozo [28]

Answer:

4 kcal per gram of carbohydrate

7 0
3 years ago
protein molecules called cytochromes are oart of the electron transport chain. They are nearly identical in every known aerobic
Dimas [21]
They give us the energy we need to move and to speak and to live they do that for all the organisms on earth
7 0
3 years ago
Astronomers have seen stars forming within a nebular cloud. As the nebular cloud condenses and its own gravitational attraction
Rasek [7]
Astronomers have seen stars forming within a nebular cloud. As the nebular cloud condenses and its own gravitational attraction collapses it, heat and energy build up creating a planet.
5 0
3 years ago
Read 2 more answers
During a stage of protein synthesis, codons in mrna molecules are used to specify the sequence of amino acids in polypeptide cha
steposvetlana [31]
Transcription is the first part of protein synthesis and translation is the second part. The process you are looking for is translation.
6 0
3 years ago
The heart is a cone-shaped muscular organ located within the ________ of the thorax. its apex rests on the ___________ and its s
Arte-miy333 [17]
<u>The heart is a cone-shaped muscular organ located within the mediastinum of the thorax.</u>

The mediastinum is the space lined with membranous tissue between the lungs. The mediastinum contains not only the heart but also the great vessels (pulmonary artery, aorta, pulmonary veins, and the superior and inferior vena cava), as well as parts of the esophagus and the trachea.

<span><u>Its apex rests on the </u><u>diaphragm</u><u> and its superior margin lies at the level of the </u><u>2nd</u><u> rib.</u>
</span>
The apex of the heart is the conical area created by the confluence of the ventricles, but mainly by the left ventricle. It rests on the diaphragm. The superior margin of the heart, also known as the base, lies at the level of the second rib.

<span><u>Approximately two-thirds of the heart mass is seen to the left of the </u><u>midsternal border</u><span><u>.</u>
</span>
This is because to the left of the midsternal border lies the left ventricle which comprises most of the heart mass as the left ventricle is the one responsible for pumping blood throughout the systemic circulation and significant pressure should be overcame; resulting to the physiologic hypertrophy of the left ventricle.

</span><span><u>The heart is enclosed in a serosal sac called the </u><u>pericardium</u><u>. The loosely fitting double outer layer consists of the outermost fibrous pericardium, lined by the parietal layer of the serous pericardium.</u></span>

The pericardium is one of three layers of the heart (other ones being the myocardium and the endocardium); and is the outer layer of the heart. The pericardium is composed of two tissues, the fibrous pericardium and the serous pericardium. The pericardium functions to lubricate the movement of the heart by the action of the pericardial fluid. 

<span><u>The heart has </u><u>four</u><u> chambers. R</u></span><span><u>elative to the roles of these chambers, the </u><u>atria </u><u>are the receiving chambers, </u></span><span><u>whereas the </u><u>ventricles </u><u>are the discharging chambers.</u>
</span>
The four chambers of the heart are namely the right atrium, right ventricle, left atrium, and the left ventricle. Venous blood goes to the right atrium via the vena cavas then to the right ventricle via the tricuspid valve; then to the pulmonary circulation via the pulmonary artery where it will be oxygenated. From the pulmonary circulation, the left atrium will receive the oxygenated blood via the pulmonary veins then to the left ventricle via the mitral valve where it will be pumped to the systemic circulation via the aorta.
6 0
3 years ago
Other questions:
  • According to Piaget, children have acquired the cognitive skill of conservation when they’re able to
    12·1 answer
  • Which part of the flower you eat when you eat an apple?
    8·1 answer
  • What are chromatophores used for in a frog?
    11·1 answer
  • The characteristic of the human immunodeficiency virus (HIV) that makes it different from other RNA viruses is that it _________
    13·1 answer
  • 5. A scientist who studies rain, lakes, and rivers (1 point)
    9·1 answer
  • The final fate of electrons in the electron transport chain is combining with _____ to form _____. hydrogen, ATP carbon, carbon
    8·1 answer
  • Which features involve tension? select the two correct answers
    11·2 answers
  • 1. Which statement best describes Mendel's<br><br><br> experiments? sc.7.L.16.1
    8·1 answer
  • What is the role of the alcohol in this experiment?​
    8·1 answer
  • Which of these best describes savannas?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!