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Strike441 [17]
3 years ago
13

Which of the following is TRUE regarding the flow of blood through the heart:__________

Biology
1 answer:
Charra [1.4K]3 years ago
7 0

Answer:

a The pulmonary artery carries deoxygenated blood.

Explanation:

This is the the only artery that transports deoxygented blood in mammals. specifically it carry deoxgenated blood from the the atria  to the pulmonary circulation. That is to the lungs  for the exchange of the C02 in the deoxygenated blood with oxygen  in the lungs.

The  blood thus become oxygenated,and therefore return through the pulmonary veins to the left ventricle.

From the left ventricle ,through ventricular systole,blood is empty into the aorta through the aortic valves into the  systemic circulation.

Although,they carry blood away from the heart,but the blood is de oxygenated instead of the usual oxygenated by arteries,They are still regarded as arteries  because of convey of blood away from the heart,a typical role of arteries

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La ecologia es la ciencia que estudia la materia inerte de un medio natural<br> es falso verdadero
likoan [24]

Answer:

Falso

Explanation:

La ecología es <u>la ciencia que estudia la interacción entre los seres vivos y el ecosistema.</u> Esto incluye la interacción entre todos los factores tanto bióticos, o vivos, como abióticos, no vivos.

Por ejemplo, la ecología podría estudiar la manera en que un venado interactúa con su entorno: cual es su principal fuente de alimento, el rol que juega en el ecosistema, las adaptaciones que ha desarrollado para vivir en dicho entorno, etc.

Debido a que la materia inerte es considerada un factor abiótico o no vivo, esto no correspondería al área de la ecología. Por ende, este enunciado <u>es falso</u>.

4 0
3 years ago
Describe the motion shown in the lines
Bogdan [553]

Answer:

Solution

For figure (a)

During interval AB Velocity is +ve, so the particle is moving in +ve direction, but it is slowing down as acceleration (slope of v-7 curve) is negative.

During interval BC Particle remains at rest as the velocity is zero. Acceleration is also zero.

During interval CD Velocity is -ve, so the particle is moving in -ve direction and is speeding up as acceleration is also negative.

For figure (b),

During interval AB Particle is moving in +ve direction with constant velocity and acceleration is zero.

During interval BC Particle is moving in +ve direction as velocity is +ve, but it slows down until it comes to rest as acceleration is negative.

During interval CD Velocity is -ve so the particle is moving in -ve direction and is speeding up as acceleration is also negatived

5 0
2 years ago
Define mass and explain how it affects an object's density.
Klio2033 [76]

Great Question! Mass is basically how heavy Something is. Most people confuse mass with weight but there very different from each other. Weight is the downward force something has because of gravity. Mass can be measured in a variety of units too. The second part of the question is how it affects density. It affects it because to find the density you need to be able to find the mass since the formula is Mass divided by volume. I hope this helped you understand a little bit more about mass. Have a great day!

4 0
3 years ago
An orange might roll off your cafeteria tray when you stop suddenly because of A. the balanced forces acting on the orange. B. t
kramer
D is correct. Newton's first law of motion states that an object in motion stays in motion. The orange is moving and then the tray stops making the orange move forward because of inertia. Hope this helps! ;)
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Which two classes of drugs are no longer able to be used in food-producing animals?
borishaifa [10]
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