Researchers have attempted to teach human languages to apes and african gray parrots, among others. what was one result of these interactions, based on the cases described in your text?

Nami conducts an investigation on plants. she places a grow light on a timer to give the plants different amounts of light to see if this would affect their growth. in this investigation, the amount of light is the .

In human relations, the irritation threshold is the

Which of the following is true about countries like england after they industrialized? a. workers usually made less money. b. people began moving to the country. c. time for leisure activities decreased. d. overall standard of living increased.