Aaron is 6 months old. He has started to look at the objects that his sister is looking at. What is this preverbal behavior called

Which statement below accurately describes the carrying capacity of any ecosystem? a. it is not affected by any abiotic or biotic resources. b. it does not affect the species of an ecosystem. c. it is completely dependent upon the food supply. d. it is affected by both abiotic and biotic resources

He constitution dictates that the presiding officer of the senate is the a) majority whip. b) vice-president. c) majority leader. d) speaker of the house.

What are the most populous and least populous areas of russia? and why are some areas more heavily populated than others?