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asambeis [7]
3 years ago
15

Why does the oxygen atom in a water molecule have negative charge?

Biology
2 answers:
son4ous [18]3 years ago
4 0

Answer:

to be able to combine with hydrogen

Explanation:

law of electrostatic induction

ipn [44]3 years ago
4 0
In a water molecule, the oxygen atom and hydrogen atoms share electrons in covalent bonds, but the sharing is not equal. ... The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
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Robert hooke coined the term cell when studying thin slices of cork. These ________ were the first cells observed because ______
Brrunno [24]

Robert hooke coined the term cell when studying thin slices of cork. these Dead

Plant Cells were the first cells observed because the thick cells.

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3 years ago
What happens when you eat more than your body needs for energy?
Talja [164]

Answer: When we regularly eat more kilo joules than our body needs, the spare energy is stored as fat. Eating as little as 100kJ extra each day (or burning 100kJ less by exercise), can lead to one kilogram of body fat creeping on over a single year.

Explanation:

7 0
3 years ago
Meselson and Stahl used density labeling of DNA to show that DNA replication occurs via a semiconservative mechanism. In their e
cricket20 [7]

Answer:

  • The organism previously used 15N for replication so all the DNA molecules were of 15N15N type. Then the organism is shifted to a medium where only 14N is available for replication.
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  • After second round of replication, 15N strand from 15N14N would synthesise another 14N strand. 14N strand from 15N14N molecules will also synthesise another 14N strand. So now, 50% of the DNA molecules will be of 15N14N intermediate type and 50% of them will be of 14N14N type.Two bands will be observed above the original 15N15N band. One band of 15N14N molecules will be right above it and other band of 14N14N molecules will be even higher because it is the lightest band since it has only the lighter isotope of nitrogen.
8 0
3 years ago
Answer please!!!
mezya [45]
Dogs, no matter what breed they are, they are all of the same species and therefore can breed with each other and create fertile offspring
 
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6 0
3 years ago
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Knowing what we know about the link between genetics, environment and intelligence, what would be your expectations if you were
Vesnalui [34]

Answer:

I would expect them to perform similar.

Explanation:

Studies suggest that intelligence has a genetic component and can, in part, be passed from parent to child - but not only that. There are outer components that contribute to the formation of intelligent individuals. Better nutrition and more access to education would be possible explanations for the progressive increase in intelligence test scores over time.

Homozygous twins are those that are mainly characterized by similarity between individuals. These twins are formed from the same zygote, ie after the fertilization process. Because of this characteristic, they have the same genetic heritage and are therefore considered identical.

As the homozygous twins in their classroom have the same genetic heritage and attend the same environment, we can conclude that their intelligence is influenced by the same factors. For this reason, a teacher who taught these two brothers might have expectations that they would perform similarly in the classroom.

6 0
4 years ago
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