AP BIOLOGY

EVOLUTION

EVIDENCE FOR EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The two most important things that the fossil record tell us about the history of life on Earth are ____
A
some species go extinct, and it is impossible for new species to take their place
B
some species go extinct, and new species appear over time
C
species usually never go extinct, but somehow dinosaurs did go extinct
D
Earth never changes, and changes to life on Earth happen very quickly
Explanation: 

Detailed explanation-1: -They can teach us where life and humans came from, show us how the Earth and our environment have changed through geological time, and how continents, now widely separated, were once connected. Fossils provide important evidence for evolution and the adaptation of plants and animals to their environments.

Detailed explanation-2: -Fossils tell us when organisms lived, as well as provide evidence for the progression and evolution of life on earth over millions of years.

Detailed explanation-3: -The fossil record helps paleontologists, archaeologists, and geologists place important events and species in the appropriate geologic era. It is based on the Law of Superposition which states that in undisturbed rock sequences the bottom layers are older than the top layers.

Detailed explanation-4: -Fossils document the existence of now-extinct species, showing that different organisms have lived on Earth during different periods of the planet’s history. They can also help scientists reconstruct the evolutionary histories of present-day species.

There is 1 question to complete.