I found the rest of the exercise on the internet and these are the options.
"-Undifferentiated vertebrae throughout the body.
-One neck vertebra allowing up and down movement.
-Many neck vertebrae that allow for greater mobility.
<span>-Two neck vertebrae allowing up and down and sideways movement."
The correct answer would be the third. - "</span>Many neck vertebrae that allow for greater mobility." The <span>present-day organism with four limbs has a neck with several vertebrae that allow movements of rotation (mostly because of only two vertebrae at the top of the neck), and side way movements, as well as back and forth movements.</span>
<h2>
Hello!</h2>
The answer is:
The new volume will be 1 L.
![V_{2}=1L](https://tex.z-dn.net/?f=V_%7B2%7D%3D1L)
<h2>
Why?</h2>
To solve the problem, since we are given the volume and the first and the second pressure, to calculate the new volume, we need to assume that the temperature is constant.
To solve this problem, we need to use Boyle's Law. Boyle's Law establishes when the temperature is kept constant, the pressure and the volume will be proportional.
Boyle's Law equation is:
![P_{1}V_{1}=P_{2}V_{2}](https://tex.z-dn.net/?f=P_%7B1%7DV_%7B1%7D%3DP_%7B2%7DV_%7B2%7D)
So, we are given the information:
![V_{1}=2L\\P_{1}=50kPa\\P_{2}=100kPa](https://tex.z-dn.net/?f=V_%7B1%7D%3D2L%5C%5CP_%7B1%7D%3D50kPa%5C%5CP_%7B2%7D%3D100kPa)
Then, isolating the new volume and substituting into the equation, we have:
![P_{1}V_{1}=P_{2}V_{2}](https://tex.z-dn.net/?f=P_%7B1%7DV_%7B1%7D%3DP_%7B2%7DV_%7B2%7D)
![V_{2}=\frac{P_{1}V_{1}}{P_{2}}](https://tex.z-dn.net/?f=V_%7B2%7D%3D%5Cfrac%7BP_%7B1%7DV_%7B1%7D%7D%7BP_%7B2%7D%7D)
![V_{2}=\frac{50kPa*2L}{100kPa}=1L](https://tex.z-dn.net/?f=V_%7B2%7D%3D%5Cfrac%7B50kPa%2A2L%7D%7B100kPa%7D%3D1L)
Hence, the new volume will be 1 L.
![V_{2}=1L](https://tex.z-dn.net/?f=V_%7B2%7D%3D1L)
Have a nice day!
Answer:
The answer you selected is correct (A)have
Explanation:
Red blood cells one goal which is to carry oxygen throughtout your body.. without it you would die to lack of oxygen.
True because in a solid particles dont move so it wouldn't be in a constant motion.