Why do scientists divide Earth's core into and outer core and inner core? Group of answer choices

They exist in different states of matter.

They have a different chemical composition.

They were formed in different geological eras.

They are divided by a layer of partly molten material called the mesosphere.

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime

Which environmental change would most likely result in bullfrog offspring that are able to store more water than bullfrogs in previous generations?