Answer:
more flexibility in movement
Explanation:
it allows the worm to pass waves of movement along its body to move through loose earth.
<u>Answer:</u> The final population of Proteus vulgaris after 6 hours is ![3.71\times 10^{6}cells](https://tex.z-dn.net/?f=3.71%5Ctimes%2010%5E%7B6%7Dcells)
<u>Explanation:</u>
We are given:
Proteus vulgaris divides and doubles every 28 minutes
Total time given = 6 hours = 360 min (Conversion factor: 1 hr = 60 min)
Number of times Proteus vulgaris doubles in 6 hours = ![\frac{360min}{28min}=12.857times](https://tex.z-dn.net/?f=%5Cfrac%7B360min%7D%7B28min%7D%3D12.857times)
Calculating the number of bacteria after 6 hours under ideal conditions:
We are given:
Initial population = 500 cells
Number of times it doubles = 12.857 times
Final Proteus vulgaris population = ![500\times 2^{12.857}=3709476.8=3.71\times 10^{6}cells](https://tex.z-dn.net/?f=500%5Ctimes%202%5E%7B12.857%7D%3D3709476.8%3D3.71%5Ctimes%2010%5E%7B6%7Dcells)
Hence, the final population of Proteus vulgaris after 6 hours is ![3.71\times 10^{6}cells](https://tex.z-dn.net/?f=3.71%5Ctimes%2010%5E%7B6%7Dcells)
Can spread themselves more easily and reproduce more while not staying in the same spot.
The answer is C) The death rate begins to fall, but the birth rates remain high for a time. No countries in the world are currently in Stage 1 or demographic transition. However, many are in stage 2, which is why many governments are concerned about overpopulation.