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barxatty [35]
3 years ago
5

NEED FAST

Biology
1 answer:
grin007 [14]3 years ago
3 0
  • Answer:The septum is the cartilage in the nose that separates the nostrils.Typically, it sits at the center and divides the nostrils evenly.
  • The two atria are thin-walled chambers that receive blood from the veins. The two ventricles are thick-walled chambers that forcefully pump blood out of the heart. ... The right atrium receives deoxygenated blood from systemic veins; the left atrium receives oxygenated blood from the pulmonary veins.
  • A pacemaker is a small device that's placed under the skin in your chest to help control your heartbeat. It's used to help your heart beat more regularly if you have an irregular heartbeat (arrhythmia), particularly a slow one. Implanting a pacemaker in your chest requires a surgical procedure.
  • In a four-chambered heart, such as that in humans, there are two ventricles that operate in a double circulatory system: the right ventricle pumps blood into the pulmonary circulation to the lungs, and the left ventricle pumps blood into the systemic circulation through the aorta.
  • Your heart has four valves that keep blood flowing in the correct direction. These valves include the mitral valve, tricuspid valve, pulmonary valve and aortic valve. Each valve has flaps (leaflets or cusps) that open and close once during each heartbeat.

Explanation:

Hope this helps ツ

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The nurse is caring for a client on the rehabilitation unit who has hearing loss. in planning care, the nurse documents ways to
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Your lab group is experimenting with the diffusion of molecules across a membrane. Dialysis tubing is used as a model cell membr
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Answer: the membrane channel

Explanation:

In passive diffusion, the small water molecules can move across the phospholipid bilayer seen in blue. This layer acts as a semi-permeable or selectively permeable membrane; its hydrophilic heads are attracted to water (seen facing outwards) while its water-repellent hydrophobic tails face towards each other- allowing  molecules of water to diffuse across the membrane along the concentration gradient.

Thus the water will move from an area of high concentration  to an area of low concentration, until the system reaches a steady state called equilibrium- after this, there will be no net movement of water. Similarly via osmosis, the water passes through the membrane due to the difference in osmotic pressure on either side of the phospholipid bilayer this means that the water moves from regions of high osmotic pressure/concentration to regions of low pressure/ concentration to a steady state.

The dialysis tubing mimics a semi permeable membrane; it only allows water and small molecules of iodine to cross into the bag containing starch. The tubing is impermeable to starch;  these large molecules require the aid of protein omplexes called membrane channels, in order to move across the membrane and against the concentration gradient.

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Discuss the results of your research about the roles of nature versus nurture on human health. Share your opinion about how an i
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ONE OF THE OLDEST ARGUMENTS IN THE HISTORY OF PSYCHOLOGY IN THE NATURE VERSES NURTURE DEBATE EACH OTHER THESE  SIDES HAVE GOOD POINTS THAT IT IS REALLY HARD TO DECIDE WHETHER A PERSON'S DEVELOPMENT IS PREDISPOSED IN HIS/HER DNA, OR A MAJORITY OF ITS INFLUENCED BY THIS LIFE EXPERIENCES AND HIS/HER ENVIRONMENT .........



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Do animals and humans have the same immune system and cite sources
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Answer:So yes,humans and other mammals (like dogs) have same immune system. Differences may occur in the protein structures, but they all come in same family and work similarly like humans.

Explanation: Are animal immune systems different from humans? - Quora

https://www.quora.com/Are-animal-immune-systems-different-from-humans

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Adam Smith described self-interest and competition in a market economy as the "invisible hand" that guides the economy. This episode of the Economic Lowdown Podcast Series explains these concepts and their importance to our understanding of the economic system.
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