In a hypothetical situation, a certain species of flea feeds only on pronghorn antelopes. in rangelands of the western united states, pronghorns and cattle often associate with one another. if some of these fleas develop a strong preference for cattle blood and mate only with other fleas that prefer cattle blood, then over time which of these should occur, if the host mammal can be considered as the fleas' habitat?

1. reproductive isolation
2. sympatric speciation
3. habitat isolation
4. prezygotic barriers

Whether or not a given study has the possibility of causing harm to participants:

Explain how civil liberties differ from civil rights and how each are protected in the united states. in your explanation, provide examples of at least one civil liberty and at least one civil right

Kate is 14 years old and just started taking dance classes with her friends at a local dance studio. this is her first time in a dance program, so everything is new to her. her friends convinced her to join the class since they have been enjoying it for a few months. how could the following terms her succeed in the dance class? ● secondary reinforcement ● identity vs. role confusion ● observational learning how could the following terms hinder her success in the class? ● circadian rhythm ● basal ganglia ● vestibular sense