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
Alexandra [31]
3 years ago
12

What is a flap of tissue in the heart that acts like a one way door?

Biology
1 answer:
viva [34]3 years ago
5 0
Valves are the thin flat tissues in the heart that acts like a one way door. The valves serve the role of preventing the back flow of blood. The heart has four major valves; that is the tricuspid valve located between the right atrium and the right ventricle, Pulmonary valve at the right ventricle and the pulmonary artery, bicuspid valve located between the left atrium and the left ventricle, and the aortic valve at the base of the aorta.
You might be interested in
What mechanical layer sits on top of the asthenosphere ?
matrenka [14]
The lithosphere sits on top of the asthenosphere.
7 0
3 years ago
Read 2 more answers
___ is usually expressed as the number of deaths per 1000 people per year.
Anastasy [175]
Answer should be death rate
6 0
3 years ago
Using an example of your choice, explain why biotechnology can be both helpful and harmful to society and/or the environment.
zloy xaker [14]
<span>Biotechnology can be used to focus on a Genetically Engineered organism. it can be helpful when used for many good purposes, like increased Production of Proteins,Antibiotics and beneficial products. It can be harmful when used for Bio-Warfare, like Anthrax.</span>
8 0
3 years ago
If you monitored energy allocation in an adult penguin for just a few months instead of an entire year, you might find the growt
Dmitrij [34]
<h2>Energy allocation in penguin</h2>

Explanation:

  • Although penguins don't grow from year to year, they increase and decrease in size as they repeatedly form and use energy stores,a significant amount of energy might be stored in fat during part of the year but be missing from the pie chart because it is used later in the year  
  • Allocation of limited endogenous resources causes trade-offs between competing traits, such as reproduction, somatic growth and maintenance
  • During food deprivation, animals cannot maximize all of their life-history traits and must exhibit adaptive behavioral, physiological and biochemical responses to reduce metabolism and/or the cost of current activities in order to maintain biological value

7 0
3 years ago
Which of these is NOT a factor contributing to the loss of biodiversity?
ivann1987 [24]

Answer:

Option C

GOOD LUCK FOR THE FUTURE! :)

4 0
3 years ago
Other questions:
  • The substance that initially traps solar energy in photosynthesis is
    14·1 answer
  • The underlying combination of genetic material that is present but not outwardly visible in an organism is called
    15·1 answer
  • The species that are most vulnerable to extinction are those, which are
    10·1 answer
  • It is necessary for the immune system to clearly distinguish foreign cells and proteins from those made by the body.
    15·1 answer
  • A teacher says she has identified an organism with these characteristics: eukaryotic, multicellular, autotrophic, and a cell wal
    15·1 answer
  • Dialysis is used when ___
    8·1 answer
  • Explain why soil is classified as a heterogeneous mixture.
    10·2 answers
  • Which sex chromosome determines the sex of a baby?<br>Explain your answer.​​
    15·1 answer
  • Which process can be primarily affected by gallbladder disease <br>​
    5·2 answers
  • 19. In the table, clearly mark the renewable resource(s).
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!