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Naddika [18.5K]
2 years ago
6

Question 1

Biology
1 answer:
Akimi4 [234]2 years ago
8 0
Animal because the algae and plant would have to have chloroplast and the bacterium does not have a nucleus as it is a prokaryote.
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22. A plant geneticist is investigating the inheritance of genes for bitter taste (Su) and explosive rind (e) in watermelon (Cit
mylen [45]

Answer:

See the answer below

Explanation:

Using the formula for calculating Chi square (X^2):

X^2  =  \frac{(O - E)^2}{E} where O = observed frequency and E = expected frequency.

The observed frequencies for the four phenotypes are 88, 62, 62, and 81 respectively.

For the expected frequency, the phenotypes are supposed to assort in 9:3:3:1 according to Mendel ratio.

Hence, expected frequencies are calculated as:

phenotype (1) = 9/16 x 293 = 164.81

phenotype (2) = 3/16 x 293 = 54.94

phenotype (3) = 3/16 x 293 = 54.94

phenotype (4) = 1/16 x 293 = 18.31

The X^2 is calculated thus:

Phenotype            O               E                             X^2

  1                          88            164.81            \frac{(88 - 164.81)^2}{164.81} = 35.80

  2                          62             54.94            \frac{(62 - 54.94)^2}{54.94} = 0.91

  3                           62             54.94              \frac{(62 - 54.94)^2}{54.94} = 0.91

  4                            81              18.31               \frac{(81 - 18.31)^2}{18.31} = 214.64

Total X^2 = 35.80 + 0.91 + 0.91 + 214.64 = 252.26

To the nearest tenth = 252

Degree of freedom = n - 1 = 4- 1 = 3

X^2 tabulated  = 7.815

<em>The calculated </em>X^2<em> exceeds the critical value, hence, the null hypothesis is rejected. The two genes did not assort independently.        </em>

4 0
2 years ago
When a phosphate group is removed from an ATP molecule, energy is......................
Gnoma [55]

Answer:

Released.

Explanation:

The bonds between the phosphates in ATP are very high energy, meaning that the bonds really really want to break because phosphates don't like being so close to each other.  When the bonds do break, a ton of energy is released (think of it like a celebration that they aren't so close anymore).  

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2 years ago
The producers at the beginning of Earth's food chain are _____
Arturiano [62]
The producers at the beginning of the Earth's food chain are plants.
6 0
3 years ago
PLZ HELP!!! I'm timed. I need answer as soon as possible. Will mark the brainliest if correct and ad a thanks with a rate of 5 t
gregori [183]
Carbon dioxide! Hope I helped
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3 years ago
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Kari is having lunch with a friend who has been just diagnosed with cancer. what kind of listening is likely to occur?
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<span>In this scenario it will be listening like about the process it took to firstly diagonise cancer in the form of medical tests done and then the list of medical treatments that he should undergo in the future inorder to overcome cancer and finally it’s the about building positiveness and confidence to overcome cancer as soon as possible.</span>
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