Answer:
Locations along rivers meant faster travel upstream and downstream to rule territories. The city became the place where the ruler or rulers lived together in a stationary spot. The city's location along early rivers encouraged stronger government, which in turn encouraged stronger cities.
External fertilization
In this type of fertilization, the female lays numerous eggs and they are fertilized externally by the males that ‘pours’ its sperm on the eggs.
Explanation:
While laying of many eggs gives an increased chance of diversity in the population, many offspring don't make it to maturity due to low parent care. There is, therefore, more wastage of reproductive energy compared to internal fertilization.
On the other hand, in internal fertilization, the egg is fertilized inside of the female and develops into a young organism before it is birthed. Even though there are fewer offspring produced, the more parental care they receive gives them an increased chance of survival. There is also low reproductive energy loss.
Learn More:
For more on reproductive strategies check out;
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The number of females whose height fall within the range 146 - 155 cm is 1.
- The height of the females can be obtained from the line graph in the picture attached.
- The height intervals is given on the x - axis and the Number of females on the y-axis.
- From the line graph, the number of females whose height range between 146 - 155 cm is 1.
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The probability of producing an offspring with this genotype: EEHh is 1:1