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
FinnZ [79.3K]
3 years ago
8

In a step by step format, write about the process of the blood flow as it enters the heart until it leaves the heart. It should

be at least 150 words.
Biology
2 answers:
Norma-Jean [14]3 years ago
8 0
First, unoxygenated blood enters the right atrium from the superior and inferior vanae cavae. Next the blood flows through the tricuspid valve into the right ventricle. From the right ventricle, the blood flows through the pulmonic valve into the pulmonary artery. The right and left pulmonary arteries then carry the unoxygenated blood to the right and left lungs for oxygen. The blood picks up a fresh supply of oxygen & releases carbon dioxide as waste. The now oxygenated blood flows through the pulmonary veins from the lungs into the left atrium. From the left atrium the blood flows through that bicuspid or mitral valve into the left ventricle. The left ventricle contracts, thus forcing blood through the aortic valve into the aorta for the distribution to the systemic circulation
e-lub [12.9K]3 years ago
6 0
People shower because its a trend. its not something that needs to be done its not something that we can its not like drinking food or water its not something that we its im sorry its not something that we actually need its just something that people do. Its a trend. people do it because other people do it and i think people do it because other people do it. To be honest people like to follow the trend. Someone else doing it and everybody else doing it i want to do it I want to fit in I want to do it. Its just kinda like jordans shoes. What is so special about jordans shoes? And me myself i was guilty of it because i used to want it.
You might be interested in
How often can a catalase molecule be used to hydrolyze hydrogen peroxide?
Viefleur [7K]

Answer:

One molecule of catalase can break 40 million molecules of hydrogen peroxide each second

Explanation:

4 0
2 years ago
Of the three phases of matter, which phase has the greatest density for most substances?
kramer
Solid would have the highest density for most substances.
7 0
3 years ago
Read 2 more answers
Why does NADH and FADH2 donate their H+ to the electron transport chain readily?
galina1969 [7]

Answer:

b. Because they have a low affinity for the H+

Explanation:

All electrons that enter the transport chain come from NADH and FADH2 molecules that are produced in earlier phases of cellular respiration: glycolysis, pyruvate oxidation and the citric acid cycle.

NADH is very good at donating electrons in redox reactions (that is, its electrons are at a high energy level), so you can transfer your electrons directly to complex I and transform it back into NAD +. The movement of electrons through complex I in a series of redox reactions releases energy, which the complex uses to pump protons from the matrix into the intermembrane space.

FADH2 is not as good for donating electrons as NADH (that is, its electrons are at a lower energy level), so it cannot transfer its electrons to complex I. Instead, it introduces electrons to the transport chain through complex II, which does not pump protons through the membrane.

4 0
3 years ago
Click on the moth variant that was selected for during the Industrial Revolution, when pollution began to kill the lichen that p
irinina [24]

Answer:

the dark moths

Explanation:

only the dark survived cause the tree trunks where covered in black stuff from the polution of the industries

8 0
4 years ago
What role do histones play in a cell
igor_vitrenko [27]

Answer:

Their function is to package DNA into structural units called nucleosomes. Histones are the main proteins in chromatin. Chromatin is a combination of DNA and protein which makes up the contents of a cell nucleus. Because DNA wraps around histones, they also play a role in gene regulation.

I hope this helped and is the right answer.

-Jarvis

6 0
3 years ago
Other questions:
  • Help me please!!!<br><br> List in order the geologic time scale in Eons, Eras, Periods, and Epochs
    10·2 answers
  • The nurse is using cognitive therapy with a client who visits the mental health center. the nurse should explain to the client t
    11·1 answer
  • Name one similarity and one difference between your simulation and actual radioactive decay.
    6·1 answer
  • In which organelle are the lipid components of the cell membrane assembled
    5·1 answer
  • What cells in the body are most likely to have originated through the process of meiosis?
    5·1 answer
  • WILL GIVE BRAINLIEST. I need help filling this out
    5·2 answers
  • Study the diagram.
    6·1 answer
  • Will give brainly!! This is due tomorrow
    5·1 answer
  • I need a paragraph explaining what dna and rna is <br><br><br><br> plssshelp fast
    9·2 answers
  • What is present on all skin surfaces except on the palms, soles, lips, and parts of the external genitalia
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!