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
Leto [7]
2 years ago
9

This class of medicines relieves coughing.

Biology
1 answer:
TEA [102]2 years ago
5 0
The answer is B because class of drugs known as expectorants.
You might be interested in
Explain the cause-effect relationship between environmental changes and the extinction of species.
Contact [7]

Answer: Anything living needs to have certain conditions, if for example a group of flightless birds who are adapted for warm weather had their environment get colder each year and more extreme the surrounding plants and other animals may have a difficult time surviving and this will cause the birds to have less food. The birds also will not be accustomed to these changes and will not be able to adapt their bodies fast enough. This also makes reproduction difficult and in turn further dwindles the population.

Hope this helps!

Explanation:

4 0
3 years ago
Meteorology is best defined as
Nata [24]
<span>Meteorology is BEST defined as the study of weather and climate.</span>
4 0
3 years ago
Read 2 more answers
When a lake freezes, how does the density of water prevent all of the living organisms in the lake from freezing as well?
konstantin123 [22]
All of the organisms go to the bottom of the lake
8 0
3 years ago
Read 2 more answers
What is a chemical make up of rock?
den301095 [7]
Igneous rock?? sorry if this is wrong

6 0
3 years ago
Read 2 more answers
What prevents blood movement from left ventricle to left atrium​
irina1246 [14]

The Mitral valve which is also known as left atrioventricular prevents blood movement from left ventricle to left atrium.

Explanation:

  • Human heart is four chambered.
  • Two of these are receiving chambers known as atria and the other two are distributing chamber known as Ventricles.
  • Atria are superior chambers and ventricles are inferior chambers.
  • The heart has four valves broadly grouped as Atrioventricular valves and Semi lunar valves.
  • Atrioventricular valves allows flow of blood from atria to ventricle. These are tricuspid valve and bicuspid valve.
  • Semi-lunar valves allow blood to pass out of the heart. These include the pulmonary and aortic valves.
  • The pulmonary valve allows blood to flow from right ventricle  to the heart while aortic valve allows blood to flow from left ventricle to the Aorta.
  • The Tricuspid valve located between the right atrium and right ventricle allows blood to flow from right atrium to the right ventricle.
  • The Bicuspid valve ( Mitral valve)  located between the left atrium and left ventricle allows the blood flow from left atria to left ventricle.
  • Valves maintain the unidirectional flow of blood and thus prevent its back flow.
6 0
3 years ago
Other questions:
  • A complication risk of gastric bypass surgery that bypasses most of the small intestine is ____.​
    5·2 answers
  • Plants do not have a circulatory system like that of some animals. If a water molecule in a plant did circulate it would require
    8·1 answer
  • How are genetic mutations caused and what effect can they have on an organism?
    12·1 answer
  • The carbon cycle ensures that carbon is not lost. Identify another important benefit of the carbon cycle.
    8·1 answer
  • The somatic cells of a privet shrub each contain 46 chromosomes. To be as different as they are from human cells, which have the
    12·1 answer
  • I need help plzzzzzz
    7·1 answer
  • True or False: Mitosis results in four genetically different haploid cells.
    13·2 answers
  • Ways of conserving soil fertility ​
    6·2 answers
  • Which of the following does NOT move continuously through ecosystems?
    14·2 answers
  • No sooner did my warden entered the room than the lights went off. (what is the error in the sentence)​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!