Biology and geology are two very different sciences, but biologists and geologists use scientific knowledge in the same way. these scientists both use scientific knowledge a. answer questions and solve problems affecting the natural world. b. investigate the chemical composition of the earth’s different layers. c. observe and classify living organisms into groups. d. explain the rituals and traditions of human cultures.

What was the land like over 500 million years ago? what was under the sea?

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

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.