Answer:
A
Explanation:
Genetic mutations randomly occur in the population of cells. If, by chance, there is a mutation that gives the bacterial cell resistance to an antibiotic, then that mutation will remain in the population.
This is because it gives the cell a competitive advantage (because it is more likely to survive than its non-resistant counterparts). If it survives, it will divide and pass the mutation on to its daughter cells, which will survive. This keeps happening until an entire population will carry the mutation.
Answer:
No, when the concentration of carbon dioxide is high, such as in peripheral tissues, CO2 binds to hemoglobin and the affinity for O2 decreases, causing it to release.
Explanation:
The O2 molecule is reversibly combined with the heme portion of the hemoglobin. When the partial pressure of O2 is high, as in the case of pulmonary capillaries, for example, the binding of O2 to hemoglobin and the release of carbon dioxide are favored, this is known as the Haldane effect. If, on the contrary, when the concentration of carbon dioxide is high, such as in peripheral tissues, CO2 is bound to hemoglobin and the affinity for O2 decreases, causing it to release, this is known as the effect Bohr.
Answer:
that b one is nucleus dont know about the a one
