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Assignment: Discussion-Species Interactions and You Humans interact with various species every day without actually realizing it. In the field of ecology, these interactions can either be interspecific (between species) or intraspecific (within species). Interactions between humans are known as intraspecific (within species) interactions. For example, interactions between a human and […]

1. What are some common treatments for removing, or making less evident, scar tissue on skin? What are the proposed mechanisms on how these treatments would work? 2. Discuss stem cell therapy as a method of regenerating areas of injury that normally would be replaced by scar tissue, such as […]

You have found a sex-limited gene that codes for male color in a Lake Victoria cichlid fish species. The dominant (R) allele codes for a red color and the recessive (r) allele codes for a greenish color. a) As you examine different populations of this species, you find that the […]

In the video on the effect of exercise on cells, it was pointed out that people who exercised regularly had younger cells. The researchers looked for a marker in volunteer’s blood. They found “strands” and surmised that, “the longer these strands, the younger the cells”. 1. What are the “strands” […]