Describe the experiment that scientists performed on mice, flies, and frogs using genes for eye development and state what it proved.

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is

Actual age your first developed of age well comparison age refers to absolute age true or false

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.