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
Alinara [238K]
3 years ago
12

Why cardiac cycle is a cycle?

Geography
2 answers:
zhannawk [14.2K]3 years ago
4 0

Answer:

its a b

Explanation:

yKpoI14uk [10]3 years ago
3 0
The cardiac cycle is the performance of the human heart from the ending of one heartbeat to the beginning of the next heartbeat.It consists of two periods: one during which the heart muscle relaxes and refills with blood, called diastole, following a period of robust contraction and pumping of blood, dubbed systole.
You might be interested in
Does the transformation below appear to be a rigid motion
bezimeni [28]
The transformation does<span> not change the size or shape of the figure Therefore, the</span>transformation appears to be a rigid motion<span>. A ^ C A' c. The </span>transformation<span> changes the size of the figure. Therefore, the </span>transformation does<span> not </span>appear to be a rigid motion<span>.</span>
3 0
3 years ago
Two of North and West Africa's most valuable ______ were______ and______ A . ransports, iron and military B . commodities, weapo
Agata [3.3K]

Explanation: What are you talking about here is it about the exports imports? Is it about their valubale resources. Please elaborate.

7 0
3 years ago
Why did so few people settle west of the Mississippi River between 1700 and 1800? A. Land west of the Mississippi River was not
kodGreya [7K]
D. Obviously because it was large and they didn't have a lot of supplies to go across also it was very deep.
3 0
3 years ago
Apartheid is best described as the system used by
Gennadij [26K]

Answer:

Apartheid was used by South Africa. Apartheid was a political system that was active ruing the time when the white minority ruled the country. It focused primarily on the skin color of people and discriminated non-whites. It ended in the early 1990s. Segregation existed in South Africa for a long time before the 20th century but with apartheid it became institutionalized.

4 0
3 years ago
How do you write a sentence for question 5 without copying the sentence in the story? (You can use some words)
nirvana33 [79]
The other stars are far away from us but the sun is close but not to close to us
5 0
3 years ago
Read 2 more answers
Other questions:
  • A coniferous forest is an example of a _____. biome community habitat population
    10·2 answers
  • Describe the four methods being used to protect the Amazon Rainforest from deforestation.
    9·1 answer
  • Central America is subject to fierce ___ which drop large amounts of ___ on the region. Another threat in the region is ___ acti
    15·1 answer
  • What woman organized a corps of 200,000 women to serve in
    6·1 answer
  • Aristotle was a famous philosopher who was the first to demonstrate what?
    5·2 answers
  • When was this earth made
    15·1 answer
  • Based on the pedigree above how many offspring from this cross had the recessive phenotype
    8·2 answers
  • Ocean currents have an affect on which two things?
    12·1 answer
  • Difference between summer rainfall and winter rainfall​
    6·1 answer
  • Look at the map above. Which of the following bodies of water is identified correctly?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!