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Jobisdone [24]
3 years ago
6

Which best describes the following impacts: water storage, clean energy, and flood prevention?

Biology
1 answer:
erastova [34]3 years ago
4 0
I hope this helps!!


:)

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Consider two different traits in mice affecting tail length and fur color. A two-factor cross was made involving true-breeding m
Stells [14]

Answer:

See the answer below

Explanation:

Null hypothesis: The two genes are independently assorting and therefore, are not linked to each other.

Let A represents the allele for tail length and B for fur color. Long-tail A is dominant over short tail a while brown fur B is dominant over white fur b.

For the first cross involving true-breeding mice:

    AABB   x   aabb

F1         AaBb (long tails and brown fur)

For the second cross:

      AaBb   x   aabb

4 AaBb - Long-tail, brown fur

4 Aabb - Long tail, white fur

4 aaBb - short tail, brown fur

4 aabb - short tail, white fur

Since the phenotypic ratio from the cross is 1:1:1:1, if the null hypothesis was to be true, it means that the expected phenotype ratio should be 1:1:1:1.

In order to test this hypothesis, we use Chi-square:

phenotype                           O            E                 X^2  

Long-tail, brown fur           118          97.5        \frac{(118-97.5)^2}{97.5} = 4.31

Long tail, white fur              77           97.5             4.31

short tail, brown fur             81           97.5              2.79

short tail, white fur              114           97.5              2.79

Total                                                                          14.2

Degree of freedom = 4 - 1 = 3

Critical Chi-square value = 7.815

The calculated Chi-square value is more than the critical value, hence, the null hypothesis is rejected.

8 0
3 years ago
*PLEASE ANSWER ASAP !!! *<br><br> [[ feel free to leave examples or details ]] !!
horsena [70]

Answer:

The answer would be the last one, he is examining the physical characteristics. Why this is correct is because physical characteristics are visible to the naked eye and therefore everything he stated was just that, including color and shape/design

Explanation:

6 0
3 years ago
Only specialist species are well adapted to their native habitats. Please select the best answer from the choices provided True
Alenkasestr [34]
The answer is False.
5 0
3 years ago
Read 2 more answers
The graph shown above is from one of the most well-known and on-going ecological studies ever performed. Isle Royal National Par
malfutka [58]
Based on the graph, the correct answer is D) The wolf carrying-capacity rises as moose populations increase, but with a delayed effect.

Please note that it is useful to add the options provided with the question, in order to get an accurate answer and have your question answered quicker.

Hope this helps!!
6 0
3 years ago
Read 2 more answers
Which of the following represents a pricing strategy that establishes a low price in hopes of attracting a great number of custo
professor190 [17]

Answer:  a. penetration strategy

Explanation:

Penetration strategy is one of the marketing strategy to promote the business and enhance the sales. The goods and services are sold at low price initially to promote the production of more goods or merchandise at low cost and allowing the authority to obtain high profit percentage. This method is useful for discouraging the competitors.

7 0
3 years ago
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