Natural Selection

The theory that landforms on Earth's surface, such as mountains, waterfalls, and canyons, were created as the result of sudden spectacular events is called the theory of

• uniformitarianism

• evolution

• catastrophism

• gradualism

A small group (Group A) of barn owls were born with better eyesight than another group (Group B) of barn owls. Which of the four main principles of natural selection is this an example of?

• variation

• adaptation

• overproduction

• competition

The ''present is the key to the past'' describes the theory of

• evolution

• uniformitarianism

• catastrophism

• natural selection

Rabbits producing more offspring than will survive is an example of ...

• competition

• variation

• selection

• overproduction

Which of these is not used as evidence for evolution?

• body size

• DNA sequences

• embryology

• body structures

The strongest evidence for change over a long period of time comes from:

• study of fossils

• Direct observation of living organisms

• embryo studies

• behavioral studies

What is the mechanism for evolution that was proposed by darwin?

• natural selection

• DNA sequences and recombination

• inheritance of acquired traits

• artificial selection

Which scientist proposed that if an organism used a structure so much that it grew, the trait of that larger structure could be passed to the offspring

• darwin

• lamark

• lyell

• de buffon

The difference in the physical traits of an individual from those of other individuals in a groups called

• adaptation

• species

• change

• variation

The more _____ within species the more likely it will survive