Scientists have discovered fossils of the same organisms in many different parts of the world. These fossils provide evidence that * 4 points
the continents were once joined together
most life-forms that existed in the past are still present today
most of Earth’s surface was once covered by molten rock
rocks have been transformed from one type to another

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

What initially causes a nerve impulse? release of enzymes out of the neuron movement of chemicals into the dendrites of the neuron pathogens attacking the dendrites of the neuron red blood cells bathing the neuron

In a cladogram' when does a group of organisms branch off