This system of agriculture developed in the late 19th century, in which a landowner allowed a tenant to use the land in return for a portion of what was produced. It was called

A) sharecropping.
B) contract farming.
C) indentured servitude.
D) communal agriculture.

50 ! 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

True or false? correlations can only be negative.

Does the amount of material present affect its intensive or extensive properties? explain.