A river forms a canyon over time as shown in the diagram. Canyon
River
-River
Year 2,000,000
Year 1
How did the river cause the canyon to form?
O A. The motion of water compacted soil until it became sedimentary rock.
OB. The motion of water wore away and transported rock away from the area.
O C. The motion of water prevented rock layers from forming beneath the water.
OD. The motion of water prevented plants and animals from forming the land in the river bed.

What causes the phospholipids to organize themselves the way they do

Which sequence correctly shows the path of carbon dioxide during repiration?

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards.the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote