Name 2 characteristics of silk moths that are different in the domesticated B. mori compared to...
Name 2 characteristics of silk moths that are different in the domesticated B. mori compared to its wild sister species.
Provide a reason why one of the two listed characteristic might have artificially selected by humans.
Homework Answers
1. The domestic species Bombyx mori has increased cocoon size, body size compared to its wild sister species.
2. The domesticated species has gained tolerance to human presence and handling which is not there in its wild sister species.
The increased cocoon size, body size is artificially selected by humans to get higher yield of silk from these moths. Certain changes in domesticated species (males have inability to fly, loss of camouflage) have made them entirely dependent upon humans for survival.
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