After 1850, dark peppered moths became more abundant than pale peppered moths. Which of the following factors influenced this change?
Industrialization
Tree trunk color
Moth-eating birds
Fossils of Mesosaurus have been found in both South America and Africa. Mesosaurus was a freshwater reptile that existed on Earth about 250 million years ago. Which statement best explains why these freshwater Mesosaurus fossils are found today in some rock layers in both South America and Africa?
The continents were once connected as a single landmass.
Because organisms living today look similar to fossils, it can be said that...
What are those organisms living today evolved from previously living animals?
DAILY DOUBLE: In 1889, August Weismann, a German biologist, conducted an experiment attempting to produce mice without tails. He cut the tails off adult mice and then permitted them to mate. All offspring had long tails. He repeated the experiment many times, always with the same results. This experiment helped disprove Lamarck and his concept of