To write:
The reason why two species involved in a symbiotic relationship probably evolved at around the same time.
Introduction:
Symbiosis can be defined as a close relationship between two organism, in which one of the species gets benefit and the other species may or not. The relationship may be positive, negative, or neutral. Mutualism is a symbiotic, which benefits both the species. Commensalism is a symbiotic relationship in which one of the species is unaffected and the other species takes benefit from the other
Explanation of Solution
Natural selection is the main key to know how symbiosis evolves. Most symbiotic relationships probably initiate as facultative. Over many generations, the organisms came to depend more on the symbiosis because natural selection helped those traits and not others. For example,
Symbiotic relationships are necessary because they are a main driving force of evolution. This bonding and cooperation among species help them to survive better than they would as individuals.
Chapter 5 Solutions
Biology Illinois Edition (Glencoe Science)
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