Answer: Struggle for Existence.
It is the competition among the individuals of the same species. This type of struggle is very severe, because the need and approach of all competing organisms is precisely same.
e.g. struggle between cow and cow, horse and horse, deer and deer, etc. for getting grass.
It is the struggle between the organisms of different species living together. Individuals of one species compete with other species for food, shelter and breeding place.
e.g. Struggle between cow, horse & deer for getting grass.
It is the struggle of all living forms against adverse environmental conditions, i.e. against natural calamities like extreme heat or cold, drought, storms, earthquakes, volcanic eruptions etc.
- For More Physics I – Question and Answer Click Here
- For More Physics II – Question and Answer Click Here
- For More Chemistry I – Question and Answer Click Here
- For More Biology I – Question and Answer Click Here