Racial and Economic Inequalities
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Answer:
Thought the process of discussion and ossmossis as due to gaseous exchange
Explanation:
With the aid of thin layers and large surface area animal are able to transport material thought the blood due to diffusion and osmosis In order to transport different materials from a every of high concentration to a low concentration until material is equally distributed throughout the body
Answer:
B) g = 0.5 h, v = 2 h^-1
Explanation:
Generation time is the time taken for a bacterial cell to divide and produce an offspring. Bacterial cells divide exponentially.
The total number of cells is given as =2n x initial number
[n = number of generations]
So if the total is 8 cells:
8=2n x 2
2n=4
n=2
That means 2 generations have arose
Generation time is given as 
where t=the time taken
if t=1hour and n=2
Generation time =
= 0.5hour
Generation time, g =0.5h, and the rate of generation (growth rate), v is 2 per hour
Melanin provides pigmentation to the skin and it also provides UV ray protection (which is its role in the epidermis).