Darwin theorized that evidence for the evolution of new species can be found in the fossil record. which observation supports this theory? a. the fur of snowshoe hares changes color with the seasons. b. the skin textures of narrow-headed frogs change to match the frogs' environments. c. the sizes, shapes, and varieties of related cephalopods have changed over time. d. the shape of cuttlefish has changed to enable the cuttlefish to hide from predators.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Explain the significance of thesaurus geographicus

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f