I ts acts as a pump regulator where it has 4 chambers.
keep in mind that out of four two take blood fromm all over the body while two transport ut to other organs through veins and capillaries.
the deoxygenated blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium.
As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
When the ventricle is full, the tricuspid valve shuts. This prevents blood from flowing backward into the right atrium while the ventricle contracts.
As the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs, where it is oxygenated. The oxygenated blood then returns to the heart through the pulmonary veins.
Left side of the heart:
The pulmonary veins empty oxygen-rich blood from the lungs into the left atrium.
As the atrium contracts, blood flows from your left atrium into your left ventricle through the open mitral valve.
When the ventricle is full, the mitral valve shuts. This prevents blood from flowing backward into the atrium while the ventricle contracts.
As the ventricle contracts, blood leaves the heart through the aortic valve, into the aorta and to the body.
Explanation:
Biomass
, geothermal
, wind and tidal are all renewable sources of energy.
Renewable resources are natural resources that be replenish through natural processes as they are depleted within our human life span.
- Biomass is source of fuel derived from organic matter usually plants and animals. They have an endless supply.
- Geothermal energy is heat from the earth derived by the interior processes within the earth. The earth is a dynamic planet and the geothermal energy is freely available for use.
- Wind and tidal energy are driven by external processes. They also have an endless supply.
Learn more:
Renewable brainly.com/question/6944540
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Answer:
D. They engulf and destory bacteria.
Explanation:
"Phagocytes are a type of white blood cell that use phagocytosis to engulf bacteria, foreign particles, and dying cells to protect the body."
hope this helps :)
Hello the answer is the bacterium Streptococcus mutants that causes dental plaque formation.
Hope this helps you<3