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Mars2501 [29]
3 years ago
6

A scientist hypothesizes that the lack of chinook salmon is negatively affecting the orca population. Would this hypothesis need

to be tested by another scientist in order to become a theory? Why or why not?
A) It is not done because scientist do not make mistakes.

B) It is not done because scientists do not read each other’s work.

C) It is done because peer review and the consideration of an alternative explanation should be considered.

D) It is done because peer review is not mandatory when developing a theory.
Biology
2 answers:
Sloan [31]3 years ago
6 0

Answer: The answer is C. It is done because peer review and the consideration of an alternative explanation should be considered.

Explanation: this is the correct answer because when other scientist view other scientist work it is to indicate that the hypothesis and observations that they made is correct.

Ratling [72]3 years ago
4 0

Answer:

C: It is done because peer review and the consideration of an alternative explanation should be considered.

Explanation:

I just took the test and got it right :)

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In beans the pod texture and growth form genes are located on different chromosomes. There are two varieties of beans in a farme
irina1246 [14]

Answer:

a. Genotype in F1 - TtBb

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b. Proportion of F2 that are heterozygous for bush-type growth form = 5/8

c. Proportion of the F2 with tender pods =  1/4

d. Proportion of F2 that are heterozygous for growth form and have tender     pods = 1/8

Explanation:

Since the two traits are located on different chromosomes, they will independently assort during gametes formation. T is dominant over t and B is dominant over b.

Two true-breeding varieties were crossed at the beginning of the program:

TTBB   x   ttbb

All F1 plants will have the genotype TtBb with tough pods and bush-type growth form.

Advancing the cross to F2:

TtBb   x   TtBb

Progeny

1 TTBB   -   tough pods, bush-type

2 TTBb     -  tough pods, bush-type

2 TtBB    -   tough pods, bush-type

4 TtBb     -   tough pods, bush-type

1 TTbb     -    tough pods, climbing-type

2 Ttbb     -    tough pods, climbing-type

1 ttBB       -    tender pods, bush-type

2 ttBb     -      tender pods, bush-type

1 ttbb      -      tender pods, climbing-type

<em>Proportion of F2 that are heterozygous for bush-type growth form = 10/16 = 5/8</em>

<em>Proportion of the F2 with tender pods = 4/16 = 1/4</em>

<em>Proportion of F2 that are heterozygous for growth form and have tender pods = 2/16 = 1/8</em>

7 0
3 years ago
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D.

Hope this helps :)))
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Which best describes the process the respiratory system goes through to provide oxygen to the body?
ArbitrLikvidat [17]

Answer:

The right side of your heart receives oxygen-poor blood from your veins and pumps it to your lungs, where it picks up oxygen and gets rid of carbon dioxide. The left side of your heart receives oxygen-rich blood from your lungs and pumps it through your arteries to the rest of your body.

Explanation:The right side of your heart receives oxygen-poor blood from your veins and pumps it to your lungs, where it picks up oxygen and gets rid of carbon dioxide. The left side of your heart receives oxygen-rich blood from your lungs and pumps it through your arteries to the rest of your body.

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