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pantera1 [17]
3 years ago
9

Water obtained from natural resources does not show neutral pH. What is the reason behind this?

Biology
1 answer:
Virty [35]3 years ago
4 0
The dirtiness of the water affected the Neutral Ph
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E. coli cells grown on 15N medium are transferred to 14N medium and allowed to grow for two more generations (two rounds of DNA
White raven [17]

Answer:

Option (d).

Explanation:

DNA is the genetic material of all the organism except some viruses. DNA is composed of nitrogenous base, deoxyribose pentose sugar and the phosphate group.

DNA replicatese by semi-conservative mode of replication in which one the daughter DNA consists of one newly synthesized strand and one parental strand. This mode of replication was explained by Messelson and Sthal experiment. The cells from 15N medium are transferred to 14N medium the band of intermediate density was observed. The daughter DNA consists of one 15N DNA strand and one 14N DNA strnd. This strand undergo replication in the 14N medium. This time one low density DNA band ( contains 14N - 14N DNA strand) and one intermediate density band ( 14N-15N DNA).

Thus, the correct answer is option (d).

8 0
3 years ago
Where do you think this bird would most likely live? Explain how two of the bird’s features would help it to survive in its envi
gavmur [86]

Answer:

water because it has webbed feet

Explanation:

6 0
3 years ago
Which of the following is an example of the strength of hydrogen bonds in water?
butalik [34]
The answer is B because when hydrogen is separated from O2 it soluble
4 0
3 years ago
In photosynthesis what substances are produced
NikAS [45]
Carbon dioxide and water are converted into glucose and oxygen
8 0
4 years ago
Choose the correct term for each definition or example.
mrs_skeptik [129]

Answer:

These are the following answers to the items:

Pinocytosis -cell engulfs molecules in cell "drinking"

Facilitated diffusion- molecules helped by protein; move insoluble molecules

across plasma membrane

Passive diffusion- molecules move in and out freely from high to low concentration

Phagocytosis- cell engulfs microorganisms in cell "eating"

Active transport- molecules "pumped" in or out from low to high concentration

Passive diffusion- oxygen, carbon dioxide

Active transport- transports sodium, potassium

Pinocytosis- transports glucose, amino acids

Explanation:

I HOPE THIS HELPS YOU║║║║║║║║

8 0
2 years ago
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