Answer:
Saliva's normal pH range is between 6.2 and 7.6. It's average is like a 6.7. Saliva keeps a neutral pH balance and doesn't fall below 6.3 in the oral cavity.
Explanation:
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I guess so it can be easier to understand. sorry if this wrong im sorry . but this is my answer
Answer:
<h2> After one round: one strand of DNA will contain radioactive 3232P, while the other strand will not contain any radioactive phosphate.
</h2><h2> After two rounds: here 50% of DNA will have 3232P in both strands, while 50% will contain 3232P in one strand and nonradioactive in the other strand.
</h2>
Explanation:
1. In the initial sample which is immediately removed after addition of radioactive isotope of phosphorus ( 3232P), hence there is no incorporation of 3232P into the DNA because replication in the medium containing 3232P has not yet occurred.
2. After one round of replication in radioactive isotope of phosphorus ( 3232P) containing medium, here only one newly synthesized strand of DNA molecule will contain 3232P, while the other strand will not contain any radioactive isotope of phosphorus ( 3232P), because DNA replication occurs in semi-conservative way.
3. After two rounds of replication in medium which contains radioactive isotope of phosphorus ( 3232P), here 50% of the DNA molecules will have radioactive isotope 3232P in both strands, while the rest 50% will contain 3232P in only one strand and nonradioactive phosphorous in the other strand.
Answer:
There are four subsystem of earth that includes lithosphere, hydrosphere, biosphere and atmosphere.
Ocean is included in hydrosphere and is one of teh largest subsytem in the earth. <u>The two input and output to the ocean subsytem are as following:</u>
- The wind energy (input) transfer to ocean surface affects the motion of water in the ocean and produces waves (output).
- Heat energy recieved from the sun (input) is transferred toward the poles and allows the heat lost to the space (output).
<u>some of the interaction of ocean with other subsytem are as following:</u>
- Interaction between biosphere and hydrosphere (ocean): ocean provide water to living organism for survival and growth.
- Interaction between atmosphere and ocean is water cycle. The water from ocean evaporates through heat (sun) and through rain the water again reaches to the oceans.
D cell membrane bc it moves things in and out of cell