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.
Motivation based on internal factors such as organismic needs (competence, relatedness, autonomy), as well as curiosity, challenge, and fun is known as Intrinsic motivation.
Intrinsic motivation is doing of an activity for inherent satisfaction rather than for some separable consequence.When individual is intrinsically motivated is moved to act for fun or challenge entailed rather than because of external products , pressure or rewards.
It is important because for task persistence , seeing a project through , and for ensuring exploration of as solution. It is accompanied by positive affect that love of the task is an important component of creative work. It strengthens efforts and persistence. Three element of motivation is autonomy , mastery and purpose.
To learn more about Intrinsic motivation here
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Answer:
A virus attaches to a specific receptor site on the host cell membrane through attachment proteins in the capsid or via glycoproteins embedded in the viral envelope. The specificity of this interaction determines the host (and the cells within the host) that can be infected by a particular virus.
Explanation:
Answer:
The images obtained from the electron microscope provides key knowledge regarding the structural basis of cell function and various diseases associated with the cells. Thus, if a scientist desires to see the structure, which binds a cell with the adjacent cells, he or she should use an electron microscope.
Explanation:
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