1. Environmental Errors

Using examples from anywhere in the animal kingdom except humans, discuss errors in development. The number of errors you discuss depends on the level of specificity, but you must include in your answer at least one gene-mediated error and one environmentally induced error. Define and describe the errors and explain how they are deleterious to the organism. Be specific; cite species, experimental and other evidence.

2. Developmental Symbiosis

Describe the mechanisms of developmental symbiosis and select an example that is not discussed in the text book. Explain how your selected EXAMPLE demonstrates developmental symbiosis and detail the life cycle changes. Identify the impact of this symbiosis on the organisms why is it an advantageous arrangement for the organisms and in what ways is it detrimental.

Needs to be at least 350 words each.