Republican and democratic members of each house meet in to choose their congressional leaders?

caucuses

sessions

committees

whips

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 .

Many single parents report complex feelings, such as frustration, failure, and guilt. this often leads them to behave in a(n) toward their children.

Helen is looking at a picture in which some of the border is missing. however, she is still able to understand the object is a picture of an american flag due to the perceptual principle of