H+ increases
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Answer:
Selective breeding
Explanation:
This method of breeding is particularly carried out by humans, breeders to produce desirable characteristics/traits in the offspring. They do this by crossing parents with these suitable characteristics to produce offspring that will inherit and possess these desirable traits.
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Answer:B
Explanation:
In C3 plant fixation of carbon occurs rubisco the Calvin cycle enzyme that add CO2 to ribulose bisphosphate to produce a three carbon compound 3-phosphoglycerate.
C4 plants have an alternate mode of carbon fixation that forms a four-carbon compound as its first products. In C4 plants there are two distinct types of photosynthetic cells; bundle-sheath cells and mesophyll cells. The Calvin cycle is confined in the chloroplasts of the bundle-sheath cell.
In the first step of this mechanisms an enzyme present only in the mesophyll PEP carboxylase adds CO2 to PEP to form oxaloacetate a four-carbon products.
The four-carbon is exported to the bundle-shealth cells where it releases CO2, which is reassimilated into organic material by rubisco and the Calvin cycle. The same reaction regenerate pyruvate. ATP is used to convert pyruvate to PEP, allowing the reaction cycle to continue.
In C4 plants ATP is the price for concentrating CO2 in the bundle-shealth. C4 photosynthesis has higher ATP requirements than the C3 pathway.
Genetic variation or coral spawning
Answer:
D . It enables organs such as the heart and stomach, to slide across cavity walls and each other without friction
Explanation:
Serous fluid is a yellow transparent liquid which is usually found in body cavities. The serous fluid serves as a lubricant to prevent internal organs such as the heart, lungs and so on, from being rubbed against each other.
