Question

All cattle are part of the same species, Bos taurus. There are many different breeds of cattle. Herefords and Simmental are twodifferent breeds of cattle.HerefordsSimmentalA rancher raises a herd of Hereford cattle and a herd of Simmental cattle. All cattle have access to the same amount of food andspace in the rancher's pasture. Each type of cattle consumes the same amount of calories of similar food each day. Both types ofcattle reach maturity and adulthood when they are 1 year old. The table below compares the average weight of a newborn calf andthe average weight of an adult cow in each of the rancher's herds.Breed Call Weight Adult WeightHereford 90 pounds 980 poundsSimmental 90 pounds 1,050 poundsWhich of the following best explains the difference in growth between the two ferds?OA. The growth of Simmental cattle and Hereford cattle is controlled by completely different genes.OB. Factors in the environment promote the growth of Simmental cattle more than the growth of Hereford cattle.OC Simmental cattle have genetic differences from Hereford cattle that result in higher rates of growth.21

Answer 1

The rancher raises two species of cattle (Hereford and Simmental), being the species with the same availability to food and space in the pasture. The question says that each cattle comsume the same amount of calories, reach maturity and adulthood at a similar period, and so on. Therefore, between the alternatives the one that best explains the difference in growth between the species is: Simmental cattle have genetic differences from Hereford cattle that results in higher rates of growth (c).