1. Summit 2015

2.  Everything on Earth doesn't exist in its own little bubble. Species interact every day. That interaction is a vital part of how organisms develop and change over time. When you study species, it is important to watch the way they interact with their surroundings. There are four basic types of relationships that living things have with one another.

6.  There many examples of predator-prey relationships: wolves eating rabbits, frogs eating insects. Frogs are considered the predator and insects the prey. However frogs are the prey of some other species… Somebody eats someone else. It's not pretty, but it does encourage the development and advancement of species.

7.  Symbiosis is a close relationship between two different kinds of organisms, or living things. There are three basic types of symbiotic relationships: mutualism, commensalism, and parasitism.  https://www.brainpop.com/science/livingsyst ems/symbiosis/preview.weml https://www.brainpop.com/science/livingsyst ems/symbiosis/preview.weml

8.  In parasitism one member of the relationship benefits while the other is harmed. Nearly all species of plants and animals are subject to parasitism by at least one species of parasite and usually by several. Parasites generally absorb food from their hosts but may also receive water, minerals, and shelter.  Most parasites are pathogens…

11.  Mutualism relationships are characterized by positive reciprocal relationship between two species for survival. There can be many reasons for two species to get in to mutual relationships. The alliance may benefit them in the form of food, shelter, defense, transport, pollination, nutrition, or any other mutual need etc.

13.  A relationship in which one member benefits while the other is neither helped nor harmed