When a client is having a chemotherapy for cancer and he or
she develops sores in the mouth, and she inquires the nurse why this happened,
the nurse's answer would say that it is due to the fact that the cells in the
mouth are sensitive to the chemotherapy. The mouths’ epithelial cells, due to
their high rate of cell turnover, become more sensitive. This is one of the
effects of chemotherapy. In chemotherapy, the healthy cells in the lining of
the mouth are also affected. Other side effects that are evident in the patient
include soreness and ulceration of the mouth, mouth infections, dry mouth,
taste changes, and bleeding gums. Aside from these effects, effects like
fatigue, diarrhea, nausea and vomiting, blood disorders, sexual and
reproductive issues, etc. can also be observed.
A carbon dioxide and oxygen diffuse into the blood
Answer:
- A species is a group of individual organisms that interbreed and produce fertile viable <em><u>offspring.
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Members of a species share similar DNA make up that make them compatible to interbreed and reproduce successfully. For two group of individuals to be considered of same species, they must be able to interbreed and produce offspring that are fertile and viable. E.g. a horse and a donkey are two different species that cannot interbreed and reproduce offspring that are viable and fertile. These two species have been said to be interbred but produced an offspring known as the mule, which is sterile and not fertile.
- Temporal isolation can result in species that are physically similar and may even <u><em>live in the same habitat, however, the breeding schedules of both population of the species must overlap for mating between both species to take place.</em></u>
Temporal isolation is a type of prezygotic reproductive barrier that occurs when two populations of a species have different breeding seasons, and so, cannot meet to interbreed to produce offspring, even though they may be dwelling in the same habitat.
- In another postzygotic situation, reproduction leads to the birth and growth of a <u><em>hybrid that is sterile.</em></u>
Postzygotic barriers as another reproductive barrier are mechanisms that prevent successful reproduction after zygote has been formed from fertilization. Two situations usually arise in postzygotic barriers:
1. The hybrid formed after fertilization in form of zygote, dies at the embryonic stage. This situation is referred to as hybrid inviability.
2. The hybrid formed after fertilization in form of zygote develops and survives both is sterile and unable to reproduce offspring of their kind. This situation is referred to as hybrid sterility.
Glucose is a molecule that was included in the picture below.