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Mashcka [7]
3 years ago
10

The four essential elements for life are

Biology
2 answers:
sertanlavr [38]3 years ago
7 0
The answer is a
Hope this helped

g100num [7]3 years ago
3 0
<span>
A. carbon, hydrogen, oxygen and nitrogen
These four elements make up almost 96% of the human body.

Hope this helps!</span>
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How do the organisms in different levels relate to one another ?
Olegator [25]
Each organism corresponds with one another because one organism feeds on another and so on and so forth
7 0
3 years ago
in pea plants, purple flowers (p) are dominant over white flowers (p). Show the cross between two heterozygous plants
Ostrovityanka [42]

Answer:

       <em>P      p</em>

<em>P</em>    PP   Pp

<em>p    </em>Pp    pp

PP=Homozygous purple

Pp= heterozygous purple

pp=homozygous White

Explanation:

I tried to type out the cross. The bold letters are the heterozygous  plants that you are crossing. and the normal letters are the offspring of the two heterozygous parents being crossed. Heterozygous means they are different alleles. Homosygous means the same alleles are present.

heterozygous= Pp

Homozygous= PP or pp

I hope this was the answer you were looking for!

4 0
3 years ago
Which reproductive process determines the traits presented in the cluster of cells
Valentin [98]
Mitosis determines the traits presented in the cluster of cells. 
6 0
3 years ago
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Liula [17]
Your answer is (B.)
Fossils in newer layers if rock are generally estimated to be younger than fossils found in the deeper layers because it is closest to the surface. The soil and earth didn't have enough time to "bury" the remains of the dead animal ( Bury is used for a simpler term) underground. The farther down a fossil is the more likely it is older unless the animal tends to burrow. Seeing as the question is probably talking of older animals that is unlikely for an animal to burrow that far. So your answer is B.
8 0
4 years ago
Read 2 more answers
Why there is uncertainty in science.
andrew11 [14]

Answer: absolute certainty is often difficult to achieve. Scientific uncertainty generally means that there is a range of possible values within which the true value of the measurement lies.

Please brainliest

7 0
3 years ago
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