Describe the path of the air as it travels into low-pressure area to the high-pressure area?

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

Works together in the synthesis, modification, packaging, and transport of lipids and proteins

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important