Based on the sedimentary rock diagram below, which statement is true? a. lethal diseases are inevitable. b. fish evolved from amphibians. c. environmental changes led to episodic speciation. d. mass speciation led to mutations and extinction.

Tall, cone-shaped mountains in which layers of lava alternate with layers of ash are called a. shield volcanoes. b. cinder cone volcanoes. c. composite volcanoes. d. lava plateaus. select the best answer from the choices provided a b c d i need asap

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form