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
zloy xaker [14]
3 years ago
15

The heart is a muscular organ that pumps blood. Blood that contains waste materials is brought to the heart by blood vessels. Th

is blood enters the __1__ and then moves down. The presence of the __2__prevets the backflow of blood inside the heart
1. right atrium
left atrium
right ventricle
2. atrioventricular valve
valves in the aorta
valves in the veins
Biology
2 answers:
Julli [10]3 years ago
7 0

<u>Answer</u>:

The blood enters the right artrium.The Presence of valves prevents backflow of blood.

<u>Explanation</u>:

The heart is a muscular organ, blood enters the heart through two large veins that is superior and inferior vena cava. Valves opens and close tightly, as heart pumps the blood, the valves prevent the blood to stop flowing in the backward direction. There are two main valves which is tricuspid valve and bicuspid valve. It helps in preventing back flow. The tricuspid valve is present in between right atrium and ventricle. The biscuspid valve is present in between left ventricle and left atrium.

Lelu [443]3 years ago
6 0

1. right atrium

2. aortic valve

im not sure if that is the answer

thats what i got


You might be interested in
True or false? The myocardium receives its oxygen supply from the endocardium via diffusion through gap junctions.
DiKsa [7]
False. The myocardium receives oxygen from the coronary arteries. Coronary arteries are found on the outside of the heart and supply oxygenated blood to the heart tissue.
3 0
4 years ago
What is the most common enzyme in the world
notka56 [123]

Answer: bisphosphate carboxylase oxygenase

Explanation: Ribulose-1,5-bisphosphate carboxylase oxygenase is a copper-containing enzyme that is involved in the first step of carbon fixation of the Calvin cycle. It is the most abundant protein on the earth and is the central enzyme of photosynthesis.

4 0
3 years ago
Nutrients from digested food enter the blood stream through the process of
eimsori [14]
The awnser to this question is Absorption
4 0
3 years ago
Stephanie made the following chart for the terrestrial planets. What correction needs to be made?
Brrunno [24]

the chart is not well written

Explanation:

their is no order

6 0
3 years ago
Read 2 more answers
What single feature is primarily responsible for the variation of climate in different parts of the world?
astraxan [27]

angle of incoming sunlight

Explanation:

The single feature that primarily determines the variation in climate in different parts of the world is the angle of incoming sunlight.

  • Climate is simply an extended study of weather over a long period of time.
  • The elements of weather like temperature, pressure, rainfall all conditions climate.
  • The angle of incoming sunlight is by far the most important factor that determines climatic patterns on the earth.
  • Around the equator, the sun is overhead and these regions are usually hot driving a wide range of weather phenomenon.
  • The polar and temperate regions receive diffused sunlight because the sun is at an angle there.

learn more:

Sunlight brainly.com/question/1739812

#learnwithBrainly

7 0
3 years ago
Other questions:
  • Which idea explains darwin’s observations about galapagos islands finches?
    5·2 answers
  • What do dna, proteins, and fats have in common? what do dna, proteins, and fats have in common? they are polar. they contain pho
    11·1 answer
  • The s phase stands for synthesis which means to make or build
    5·1 answer
  • What does the pH scale tell us?
    10·1 answer
  • Red blood cells life span is how long
    5·1 answer
  • Why viruses are thought to have evolved after cells instead of before.​
    11·1 answer
  • When should you waft a chemical?
    9·1 answer
  • Arrange the biological terms from smallest to largest.
    9·2 answers
  • What is the primary cause of groundwater shortage?
    12·2 answers
  • What were Mendel's 4 ideas explaining the inheritance pattern he observed? Which one of them is considered the Law of Segregatio
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!