When coal is burned in a power plant for electricity in one city how might this affect a forest many miles away A. it's could contribute to acid rain falling on the forest
B. it could increase the amount of oxygen available to the forest
C. it could provide electricity for heating the forest
D. it could decrease the amount of carbon dioxide available to the forest

What organs comprise the respiratory system of a bird

Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?

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.