Answer:
water polarity causes cohesion that pulls other water molecules up through a plant.
Explanation:
Water for plants is essential because it constitutes one of the necessary elements so that they can generate their food through the process called photosynthesis.
In effect, plants take the hydrogen from a water molecule and discard the oxygen, providing the atmosphere with this essential gas for life.
Answer:
Phosphate sugar backbone:
The sugar-phosphate backbone forms the structural framework of nucleic acids, including DNA and RNA. This backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.
Nitrogenous base:
Nitrogen bases are the molecules that make up the steps of the ladders. There are four different nitrogen bases, namely; Guanine, Thymine,Adenine and Cytosine.
Pyrimidines are compounds that make a single 6-sided ring. Examples of pyrimidines are Cytosine and Thymine.
Purines on the other hand make 5-sided and 6-sided rings. Examples of purines are Guanine and Adenine.
The nitrogen bases are helped together through hydrogen bonds.
Hydrogen Bonds:
A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
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Answer:
they are the same
Explanation:
since one mole is 6.022×10^23 atoms, one mole of silver is 6.022×10^23 atoms and one mole of tin is 6.022×10^23 atoms. so one mole of tin has the same number of atoms as one mole of silver
