The majority of time during a cells life is spent in ____

Consider the motion diagram. It illustrates a car's velocity (V) and acceleration (A). Determine is there is a change in either

aleksandrvk [35]

Answer:

Change in velocity: yes

Change in acceleration: no

Explanation:

The diagram of the problem is missing: find it in attachment.

In the diagram, there are represented:

- The velocity of the car, as a vector labelled with V

- The acceleration of the car, as a vector labelled with A

The directions of the vector represent the direction of the velocity and the acceleration, while the length of the arrows represent the magnitude of the two quantities.

We observe that:

- For the velocity, the direction is always to the right; however, the length of the arrow decreases, so the magnitude of the velocity keeps decreasing

- For the acceleration, the direction is always to the left; and the length of the arrow remains constant, therefore the magnitude of the acceleration does not change.

This means that the car is moving to the right, but it is slowing down, since the direction of the acceleration is opposite to the direction of the velocity.

5 0

3 years ago

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9. a) How does hydrogen bonding help the transport of water in plants?

grigory [225]

Answer:

Water has a high Cohesion because of Hydrogen bonding. This is important as transport of water in the Xylem in plants relies on water being pulled up. Cohesion also gives the water a high surface tension, allowing small organisms, such as Pond Skaters, to walk along it.

Explanation:

Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions.

Plants obtain the hydrogen they need from water molecules. Don't try to feed your plant hydrogen gas -- your plant wouldn't know what to do with it if you did. As long as they have water, plants can readily obtain all the hydrogen they need. :)

6 0

3 years ago

2. The vasa recta is a specialized capillary that branches from the ___________ arteriole. The blood flow in the vasa recta runs

lorasvet [3.4K]

<h2>Vasa recta </h2>

Explanation:

The vasa recta is a specialized capillary that branches from the efferent arteriole; The blood flow in the vasa recta runs parallel, but in the opposite direction to the flow of tubular filtrate within the nephron loop

The vasa recta capillaries are long, hairpin-shaped blood vessels that run parallel to the loops of Henle
The hairpin turns slow the rate of blood flow, which helps maintain the osmotic gradient required for water reabsorption
Absorbed water is returned to the circulatory system via the vasa recta, which surrounds the tips of the loops of Henle
Because the blood flow through these capillaries is very slow, any solutes that are reabsorbed into the bloodstream have time to diffuse back into the interstitial fluid, which maintains the solute concentration gradient in the medulla; this passive process is known as counter-current exchange

3 0

3 years ago

Drag the tiles to the correct boxes to complete the pairs.

kirill [66]

Answer:

Cause: Earth’s magnetosphere traps radioactive solar wind particles in bands around Earth → Space travel through the Van Allen belts is dangerous.

Cause: Earth is surrounded by a magnetic field → Effect: Solar wind deflects toward the poles.

Cause: Solar wind particles interact with Earth’s upper atmosphere → Effect: An aurora is created

Explanation:

I have been able to drag the tiles to the correct boxes to complete the pairs.

When there is a trapping of radioactive solar wind particles in bands by the earth's magnetosphere, it becomes dangerous to travel in space through the Van Allen. Cosmic rays and solar particle add up to the additional hazards that it poses. A Van Allen radiation belt is known to be a zone where energetic charged particles are found. Most of the energetic charged particles originate from the solar wind. The solar wind are captured by and held around a planet by that planet's magnetic field.

When the solar wind interacts with the earth's atmosphere, there is a collision of atoms of oxygen and nitrogen from the earth's atmosphere. The energy that is formed is a colorful glowing halo which is known as an aurora.

3 0

3 years ago

Having dimples (D) is dominant over not having dimples (d). If a person that is Dd has children with a person that is dd, what w

MrRa [10]

Answer:

b) Dd or dd.

Explanation:

Dd x dd possible combinations are just Dd or dd.

7 0

3 years ago

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The majority of time during a cells life is spent in _____