Answer:
Most treatments for cancer use radiation to target the cancerous cells (tumor) and blast radiation in that direction. Because we cannot control the radius of the radiation, other cells are also blasted with radiation and causes sickness in cancer patients.
Explanation:
The bronchi are where air passes from the trachea.
Answer:
Prezygotic barriers:
1. Habitat isolation
2. Behavioral isolation
Explanation:
Pre-zygotic barriers are the barriers which do not allow the formation of the zygote in the organisms.
The two mechanisms of the pre-zygotic barriers are the:
1. Habitat isolation: the Flycatchers do not share the same habitat which is also mentioned in the question that they live on different islands.
2. The behavioural isolation: the Flycatchers could have evolved the different mating rituals as a result of which the could not interbreed.
Thus, Habitat isolation and Behavioral isolation are correct.
