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
kozerog [31]
3 years ago
7

How many chambers does the heart contain? a. 3 b. 4 c. 5 d. 6

Biology
2 answers:
madam [21]3 years ago
8 0


The best answer is b.  4

The human heart has  four chambers - two atria and two ventricles.

1. Right atrium -  receives oxygen-poor blood from the body and pumps it to the right ventricle.

2. Right ventricle -  pumps oxygen-poor blood to the heart.

3. Left atrium - receive oxygen - rich blood from the  lungs.

4. Left ventricle - pumps oxygen rich blood to the body.

The heart is a muscular organ. It is about the size of a closed fist. It is located in the thoracic cavity. It is protected by the rib cage and is the major organ of the circulatory system.



elena55 [62]3 years ago
6 0

Answer:b

Explanation: the human heart contains 4 chambers -2 atria and 2 ventricle while a fish contains only 2 chambers- 1 auricle and 1 ventricle.

In humans, the right atrium receives deoxygenated blood and transfers it to right ventricle from where it gets transferred to the blood. Left atrium receives the pure blood and transfers it to left ventricle.

You might be interested in
What is the difference between a compound eye and and a human eye
Angelina_Jolie [31]

Insect Compound Eye vs. Human Eye. Insects and humans have very different types of eyes, but each has advantages and disadvantages. ... The quality of its vision is much higher than that of a compound eye, and it has a much more complex construction

6 0
3 years ago
Read 2 more answers
A teenager throws a 7.26 kg rock into a lake, trying to make a big splash. If the rock is travelling at a speed of 7.5 m/s, how
kherson [118]

Explanation:

K.E = 1/2mv²

1/2 x 7.26 x 7.5²= 204.19j

5 0
3 years ago
Fresh water makes up less than _____ percent of the world’s water.
Alexxandr [17]
Only about 3 percent of the worlds water is fresh, and even less than that is usable, because most of it is locked up in glaciers or in permanent snow fields.

The correct answer is D.
3 0
3 years ago
Please answer quick!! Given the following template strand, write in the sequence of the complementary DNA
yarga [219]

Answer:

ATG CTT CAG GGA ATC

Explanation:

Using Chargaff's rule:

A=T

G=C

You can find the DNA complentary strand

5 0
2 years ago
How is citric acid cycle the same as fermentatation​
mash [69]

Answer:

· Fermentation does not generate any additional energy, however, NAD+ is regenerated. In the presence of oxygen, pyruvate is oxidized and acetyl CoA is formed, which feeds into the citrate acid cycle and the complete oxidation of glucose.

Explanation:

6 0
2 years ago
Other questions:
  • Based on the graph above, how well will the enzyme perform as a catalyst when placed in a pH 7 solution, such as water?
    8·1 answer
  • What is the main function of the digestive system
    15·2 answers
  • What does it mean if a micrograph is false colored?
    10·1 answer
  • Sophie is preparing a qualitative research plan for her study that explores the stories of young cancer survivors. Of the follow
    6·1 answer
  • If we had a Gold necklace, and we melted it down and reshaped it to a gold coin
    5·1 answer
  • Annie wants to find out if having a substance dissolved in water changes the temperature at which the liquid boils. She prepares
    6·1 answer
  • Why does the note A-natural sound different on a tuning fork, a violin, and a flute?
    13·1 answer
  • How to get rid of water pollution???​
    7·1 answer
  • A football team lost 14 yards on their first play then lost another 7 yards on the next play. what internet represents the total
    5·1 answer
  • Where are the tectonic plates located on Earth?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!