Jimmy finds a hunk of something. It appears to be an element. It melts at 500*C and when it was run over by a train, it got crushed and shattered. What is it likely to be? * A. Metal

B. Nonmetal
C. Metalloid

Which of the following is an example of a tissue on the digestive system a. the stomach b. smooth muscle that lines the stomach c. nerve cells in the stomach d. enzyme molecules in the stomach

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

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.