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Anestetic [448]
3 years ago
8

How is the growth of land plants proof that there is carbon in the atmosphere? How does carbon exist in the atmosphere, biospher

e, and geosphere all at the same time? (Site 1 )
Biology
1 answer:
aalyn [17]3 years ago
6 0

Plants take the CO2 from the atmosphere which is used in Calvin's cycle to synthesize organic compounds that end up building the plant. This fact can be proved by marking the atmospheric CO2 with radioactive isotopes of carbon, afterwards using a Geiger counter the plant will present radioactivity.

The carbon in the atmosphere is most commonly found in the form of CO2

it has a concentration of 0.04%.CO2 is a byproduct of aerobic respiration

or combustion, for example, C6H12O6+6O2-->6CO2+6H2O. The CO2 is then used by plants in photosynthesis as mentioned earlier.

Carbon is present in the biosphere because all life is made of carbon.

Carbon is present in the geosphere most commonly under the form of hydrocarbons like methane(CH4). The carbon present in geosphere is a result of organisms decay and metabolic byproducts. For example, methanogen bacteria synthesize methane in anaerobic conditions reducing hydrogen in the presence of CO2(CO2+4H2⇒CH4+2H2O). Carbon in the geosphere can also be found in coal that becomes diamond under extreme pressure and temperature.

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Some bacterial cells live in very cold environments (such as the arctic ocean), but they still require membrane fluidity like th
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3 years ago
The type of inheritance shown when a red-flowering plant is crossed with a white-flowering plant and only pink flowering plants
bija089 [108]

Answer:

Incomplete dominance.

Explanation:

6 0
3 years ago
8. How is an observation different from a hypothesis?.
victus00 [196]

Answer:observation is what you have gathered, after you look over it you my hypothesis of what you gathered. hypothesis is an explaination of the observation.

Explanation:

5 0
3 years ago
When a tall plant and pure dwarf plant were crossed all offspring were tall in first generation why arent dwarf plant observed​
Zanzabum

Answer:

A cross between two pure breeding tall (TT) and dwarf (tt) parent plants produce uniform F

​

 

Explanation:

generation of dominant individuals (Tt).

According to the law of dominance, a trait is represented by two contrasting factors of a gene in a heterozygous individual; the allele/factor that can express itself in a heterozygous individual is called as a dominant trait. Another factor whose effect is masked by the presence of a dominant factor is called a recessive factor. The recessive factor, t, is present in F

​

 hybrids but its expression is masked by the factor for a dominant trait, T.

4 0
3 years ago
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