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lutik1710 [3]
3 years ago
5

Explain the characteristics scientist use when observing organisms and placing them in the six kingdoms.

Biology
2 answers:
arlik [135]3 years ago
7 0

Answer:

Mobility- When an organisms is able to physically move from place to place.

Cell Type- Having a nucleus and organelles or Not having them.

Cell Type - Prokaryotic. ...

Cell Type- Eukaryotic. ...

Cell Structure- Cell Wall. ...

Cell Structure- No Cell Walls. ...

Body Type- Unicellular. ...

Body Type- Multicellular.

Explanation:

posledela3 years ago
5 0

Answer:

the simple answer

Explanation:

cell type – prokaryotic or eukaryotic

cell structure – cell wall

nutrition – autotrophic or heterotrophic

body type – unicellular or multicellular

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During which phase of meiosis do retreads line up in the middle of the cell
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What happens to calcium carbonate as the ocean gets more<br> acidic?
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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
Which statement is a scientific theory?
BARSIC [14]

Answer:

Acceleration of an object increases as the force of an object increases is the scientific theory. Hope this helps :)

Explanation:

5 0
2 years ago
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