If the same types of fossils are found in two separate rock layers, it's likely that the two rock layers . a. formed at different times c. formed under different conditions b. are part of one continuous deposit d. none of the above Please select the best answer from the choices provided A B C D Mark this and return

The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community

Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic