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mamaluj [8]
3 years ago
8

The study of human populations is called

Biology
2 answers:
Alika [10]3 years ago
7 0

Answer:

Demography

Explanation:

Demography: is the study of human populations; their size, composition and distribution across space and the process by which populations change.

igor_vitrenko [27]3 years ago
5 0
The study of human populations is called Demography. Sorry it’s late.
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Proteus vulgaris has a doubling time of roughly 28 minutes. If an initial population of 500 cells is allowed to grow for 6 hours
romanna [79]

<u>Answer:</u> The final population of Proteus vulgaris after 6 hours is 3.71\times 10^{6}cells

<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

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

Hence, the final population of Proteus vulgaris after 6 hours is 3.71\times 10^{6}cells

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3 years ago
The cellular processes of neurons that provide receptive surfaces for input from other neurons are
skad [1K]
<span>The answer is dendrites. The protoplasmic projections of the neuron join other neurons dendrites enabling ann intricate network of neural networks, especially in the brain. The junction at which their  join is called a synapse.  Impulse travel from these dendrites to the body of the cell (soma) and through the axon</span>




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3 years ago
Which foosils are usually discovered at the top of the rock
Lelu [443]
<span>The youngest rock layers are at the top and the oldest are at the bottom, which is described by the law of superposition.</span><span>Fossil layers are fossils that formed in sedimentary rock. Sedimentary rock is rock that is formed in layers by the depositing and pressing of sediments on top of each other. </span>
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Car wax mostly contains beeswax and carnauba wax. Which of these does NOT accurately describe waxes?
alex41 [277]

Answer:

Waxes does't contain fatty acids,glycerol and a phosphate group.

Explanation:

Car wax and bee wax contain ester bonds, fatty acids and long chain hydrocarbons but they don't possess fatty acid, glycerol,and a phosphate group.

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How do reptiles breathe?
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