1. Competition: This occurs when organisms fight for the same limited resources. This could be food, water, space, mates, or even sunlight. Competition can happen within a species (intraspecific) or between different species (interspecific).
* Example: Lions and hyenas competing for the same prey.
2. Predation: This is the interaction where one organism (the predator) kills and consumes another organism (the prey). Predation is a crucial part of many ecosystems, helping to control populations and maintain balance.
* Example: A hawk catching and eating a mouse.
3. Symbiosis: This involves a long-term, close relationship between two different species. There are three main types of symbiosis:
* Mutualism: Both organisms benefit from the relationship.
* Example: Bees pollinating flowers while getting nectar.
* Commensalism: One organism benefits, while the other is neither helped nor harmed.
* Example: Barnacles attached to a whale.
* Parasitism: One organism (the parasite) benefits at the expense of the other (the host).
* Example: A tapeworm living in a human's intestines.
These are just three broad categories, and there are many nuances and specific examples within each. It's important to remember that these interactions are complex and can influence the evolution and survival of species.
