Question

Focus on the evolution of the horn size in the Bighorn sheep population from 1950 to present. Does variation exist for horn size in bighorn sheep? Explain the variation. Yes, variation exists. There are sheep with small, medium and large horns O No, variation does not exist. It is a fixed trait. Yes, variation exists. The sheep can change its horn size to adapt to the environment. Yes, variation exists. The sheep need bigger horns to fight and win mates. No, variation does not exist. Hunting has caused there to be no variation.

Answer 1

Yes, the variation exists. There are sheep with small, medium and large horns. Natural circumstances and judicious hunting can alter the size of the horn growth. The development of the horn was certainly affected by reduced population mass and moderately hot spring climate indicating that continuous weather adjustment will make advancements in the size of the horn. The horn size of the bighorn sheep population is an example of secondary characteristic based on natural selection. The environmental factors like inbreeding despair and hunter's created metamorphic advancement, possibly resulting from the scarcity of the environment could have possibly caysed reduction in horn size.