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
11Alexandr11 [23.1K]
3 years ago
11

What valve prevents back flow into the left ventricle of the heart?

Biology
1 answer:
Rom4ik [11]3 years ago
4 0

Answer:

Option D, aortic valve

Explanation:

The location of aortic valve i.e between the aorta and left ventricle,  allows it to stop the blood from flowing back into the left ventricle.

The other options are incorrect as -  

Pulmonary valve being located between the pulmonary artery and right ventricle, stop the blood from flowing back into the right ventricle.

The tricuspid valve and mitral valve stops the blood from flowing back into the right atria and left atria respectively.  

Hence, option D is correct.

You might be interested in
2.) Those that knew Randy stated he should not have gone treasure hunting because he had a premedical breathing
ella [17]
The answer would be respiratory. Because asthma affects your breathing which is what the respiratory system is used for. (Lungs)
5 0
4 years ago
What is the physical state of dna after being denatured by heat?
navik [9.2K]
I believe when DNA is denatured by heat, hydrogen bonds are separated to create single stranded DNA. When the DNA solution is heated enough, The double stranded DNA unwinds, and the Hydrogen bonds that hold the two strands together weaken and finally break. The process of breaking a double-stranded DNA into single strands is known as DNA denaturation, or DNA melting.
6 0
4 years ago
Read 2 more answers
Glycolysis is a part of cellular respiration that takes place in the absence of oxygen.
Marta_Voda [28]

Answer:

Explanation:

Glycolysis is an anaerobic process - it does not need oxygen to proceed. ... They follow glycolysis with the Krebs cycle and electron transport to make more ATP than by glycolysis alone. Cellular respiration that proceeds in the presence of oxygen is called aerobic respiration.

5 0
3 years ago
Which word correctly fills both blanks in the description below?
densk [106]

Answer:

C. chromosome

Explanation:

8 0
3 years ago
Why is it hard to say whether viruses are alive or not
MissTica
"Viruses straddle the definition of life. They lie somewhere between supra molecular complexes and very simple biological entities. Viruses contain some of the structures and exhibit some of the activities that are common to organic life, but they are missing many of the others. In general, viruses are entirely composed of a single strand of genetic information encased within a protein capsule. Viruses lack most of the internal structure and machinery which characterize 'life', including the biosynthetic machinery that is necessary for reproduction. In order for a virus to replicate it must infect a suitable host cell".
From The Bacteriophage T4 Virus
8 0
3 years ago
Other questions:
  • Plants do not just use photosynthesis to make sugar for energy storage. Identify other kinds of uses plants have for these subta
    15·1 answer
  • Cells need energy in order to ________?
    7·2 answers
  • What organ system does the spleen belong to?
    14·2 answers
  • Where do the products of photosynthesis come from? a. we exhale them b. plants c. we inhale them d. animals e. a chemical reacti
    7·1 answer
  • A 77-year-old man presents with left-sided chest pain, headaches, night sweats, a burning sensation in his hands and feet, and s
    13·2 answers
  • Charles Darwin’s observation that finches of different species on the Galápagos Islands have many similar physical characteristi
    6·2 answers
  • What is the function of the excretory system?
    15·1 answer
  • During a study, a biologist counts the allele frequency of the colors of beetles. In the original population, there were 25% gre
    14·1 answer
  • One common hazard during a heat wave is too much sun
    14·1 answer
  • suppose these two chromosomes are found in a cell nucleus during prophase. what is relationship between chromatids
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!