The molecules in this diagram are moving in a
random motion from one part of a membrane to another, from a higher
concentration to a lower concentration.
random motion from one part of a membrane to another, from a lower
concentration to a higher concentration.
straight line motion from one part of a membrane to another, from a higher
concentration to a lower concentration.
straight line motion from one part of a membrane to another, from a lower
concentration to a higher concentration.

Classify the structures as homologous or analogous, depending on their structure and function.

Isotopes of the same element have differ in their

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.