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
Andrej [43]
4 years ago
12

Papillary muscles prevent the AV valves from prolapsing (bulging) excessively into the atria when the ventricles contract. True

False
Biology
1 answer:
marta [7]4 years ago
7 0

Answer:

True

Explanation:

Papillary muscles are the muscles that project out from the walls of the ventricles of the heart. These muscles are attached to the AV valves with the help of chordae tendineae. During the contraction of ventricles, the higher blood pressure closes the AV valves by driving the edges of these valves towards each other. At this time, the contraction of Papillary muscle pulls on and makes the chordae tendineae rigid and right. This does not allow the cusps of the AV valves to ever into the atria in the response to higher blood pressure in ventricles.

You might be interested in
Less than 0.1% of the energy in a food chain generally makes it from the sun to decomposers. Please select the best answer from
Shkiper50 [21]
The answer would be true
4 0
4 years ago
Read 2 more answers
1. What is the original source of energy in the food you eat?
guajiro [1.7K]

Photosynthesis is similar to cellular respiration in the sense that the equation of one is the reverse of the equation of the other.

The original source of energy that is introduced into the ecosystem comes from the sun. This energy is passed along the food chain.

The equation that models cellular respiration is the equation; C6H12O6 + 6O2 → 6H2O + 6CO2 + Energy. Recall that cellular respiration involves the breakdown of glucose in the presence of oxygen. The compound that is involved in cellular respiration is oxygen.

The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.

The products of photosynthesis are carbon dioxide and water as we can see from the reaction; 6CO2 + 6H2O → C6H12O6 + 6O2.

Electrolysis does not form a part of cellular respiration. Glycolysis,  electron transport chain and the Krebs cycle are steps of cellular respiration.

The events shown in the picture occurs in the chloroplasts. The image shown the biochemical processes involved in photosynthesis.

During cellular respiration, glucose is split into its constituent molecules which are water and carbon dioxide when it reacts with oxygen.

The equation of photosynthesis is the reverse of the equation of cellular respiration.

Learn more: brainly.com/question/1388366

3 0
3 years ago
Read 2 more answers
How do producers and cosumers help with the water cycle? pls help I haven't been getting enough rest lol
AURORKA [14]

Water cycle is defined as the process of transportation of water above and below the ground level. With the help of water cycle, this natural resource regulates and maintains a balance.

Both plants and animals play a vital role in maintaining a balance in water cycle.  Plants absorb water and utilize it in food processing.  A lot of water content evaporates in the atmosphere through the process of transpiration.  

In case of animals, they do not contribute as much as the plants do but they contribute in water cycle via breathing, perspiration and urination.


7 0
3 years ago
Reasons why dna bands in gel are not bright
tester [92]
You have lower concentration levels in the DNA
5 0
3 years ago
How does the sun cause water to move from the oceans to the atmosphere?
yaroslaw [1]

Answer:

Explanation:

Approximately 70% of Earth's surface is covered in ocean water. When water at the ocean's surface is heated by the Sun it gains energy. With enough energy, the molecules of liquid water change into water vapor and move into the air. This process is called evaporation.

7 0
3 years ago
Read 2 more answers
Other questions:
  • What happens if the thyroid does not function ?
    9·1 answer
  • Which characteristic of the male reproductive system is not variable among animal species that reproduce sexually? view availabl
    8·1 answer
  • Each person in a family has the same traits. There are no differences in traits between parents and Offspring or among siblings.
    8·1 answer
  • Which best describes radiometric dating?
    11·2 answers
  • What is the independent variable and dependent variable in a Cartesian diver?
    15·1 answer
  • 27. If there is a full moon on Sept. 13, When is the next full moon?​
    9·1 answer
  • The _____ bisects the body into right and left sides.
    11·1 answer
  • 1. Binary fission
    11·1 answer
  • Marine debris mostly originates from oceangoing ships.<br><br><br> True<br><br> False
    11·2 answers
  • Without evaporation, the water cycle would not be able to continue to repeat over and over again.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!