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Mazyrski [523]
3 years ago
7

How does its action differ from that of the atrioventricular valve?

Biology
1 answer:
miv72 [106K]3 years ago
5 0
The aortic valve separates the left ventricle from the aorta, while the pulmonary valve separates the right ventricle from the pulmonary artery. As the ventricles contract, ventricular pressure exceeds arterial pressure, the semilunar valves open and blood is pumped into the major arteries.
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[2]
Gennadij [26K]

Answer:

Blood is carried away from the heart by arteries. Blood that is rich in oxygen. Blood that is low in oxygen is returned to the heart by veins. there is more pressure in arteries than in veins.

5 0
2 years ago
An example of natural selection is the tail of a male peacock. The females of the species choose mates based on the colors of th
Sati [7]
<span>(decreased variation in tail feather color because no form of the trait is advantageous) Due to the fact that the tail color is no longer a necessity, so it will eventually stop being needed and variation will decrease.</span>
6 0
3 years ago
Read 2 more answers
The Coriolis effect determines
Scrat [10]
I’m pretty sure it’s D, sorry if I’m wrong, I looked it up and it said “ Speed, latitudes, and direction of the objects determines the path along, which, the Coriolis effect deflects moving objects”
8 0
3 years ago
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An eccentric millionaire botanist has offered a $25,000 scholarship to anyone who can successfully get a plant to grow through a
mars1129 [50]

Answer:

Option B, Apply auxin directly to the lower part of the stem opposite from the direction you want the stem to bend.

Explanation:

Options for the question are

A) Apply auxin directly to the shoot tip on the side to which you want the tip to bend.

B) Apply auxin directly to the lower part of the stem opposite from the direction you want the stem to bend.

C) Inject compounds that block auxin receptors into the part of the stem opposite from the direction you want the stem to bend.

D) Plant the roots in two different pots, and apply auxin to the root bucket that is on the same side as the direction you want the plant to bend.

Solution

Auxin is responsible for stem elongation by inhibiting growth of lateral buds. The movement of auxin is opposite to the direction of elongation of cells. Generally, Auxin moves to the dark side which is opposite to the direction i.e the lighter side in which cell elongate . Due to this growth pattern, the stem tip gets curved towards the light.  

Hence, option B is correct

4 0
3 years ago
An offshore oil platform houses a drill for drilling oil. The drill descends from the platform and enters the ocean. At the bott
Lemur [1.5K]

Answer:

in the geosphere

Explanation:

The drill will eventually stop within the geosphere.

  • The biosphere is the region of the earth populated by living organisms.
  • The geosphere is the region of the earth made up of solid rock
  • The atmosphere is the gaseous part of the earth.
  • The hydrosphere is the liquid part of the earth or where water dominates the earth.

The drill pierces through the geosphere as it initially passes through the hydrosphere. Eventually, the drill stops within the geosphere.

6 0
3 years ago
Read 2 more answers
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