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Angelina_Jolie [31]
3 years ago
10

The structure that results when atoms are joined together by covalent bonds is called a(an) . molecule

Biology
1 answer:
stiv31 [10]3 years ago
7 0
Molecule is formed when atoms combine by covalent bonding. The molecule may be polar or non polar.

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3 years ago
Why is the solid earth layered?
Andre45 [30]

The Earth is layered because of the difference in the density and the pressure experienced by the elements. The denser layers tend to be closer to the center and the lighter layers float on the top. The differences in the pressure experienced by these layers also keeps them separated. The pressure experienced by the center of the Earth is greater than the upper layers, and hence, the core is in liquid form because the pressure is not enough for it to remain in the solid state.

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explain one reason why the population of marsh grasses might increase if the population of herons decrease
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Why are pigments such as chlorophyll needed for photosynthesis
Vlad [161]

Answer:

The chlorophyll pigment have photosystem 680/ PS I which captures the sunlight. Then the pigments gets excited and photosynthesis starts. Without chlorophyll photosynthesis can't happen.

Explanation:

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The chlorophyll is a double layer membrane structure. In it two photosystems works i.e. photosystem I and photosystem II. In the photosystem I light is trapped.  

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In the transition of metaphase to anaphase, the cohesin complex is cleaved by the separase enzyme in a process dependent on the activation of specific proteins that trigger posttranslational modifications (i.e., protein degradation by ubiquitination). This process of cleavage enables the sister chromatids to separate and move to opposite sides of the cell

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