Section 13.2 - The Theory of Evolution
It explained heredity by genes and the mechanism of mutations for changing genes.
How did the modern study of genetics affect Darwin's original theory of evolution? - It disproved that small changes accumulate over time to form new organisms. - It proved that the variations Darwin observed were caused by natural selection. - It explained heredity by genes and the mechanism of mutations for changing genes. - It showed that changes in organisms only occur as a result of recessive genes.
genetic mutations with natural selection
What is most commonly believed to be the mechanism, or driving force, behind evolution? - genetic variation - genetic mutations with natural selection - characteristics and behaviors acquired during a lifetime - the struggle for existence
the struggle for existence
Which idea from Thomas Malthus helped Darwin to formulate his theory of evolution? - the heredity of acquired characteristics - the struggle for existence - the idea of natural selection - the principle of uniformitarianism
the idea of natural selection and the survival of the fittest
Which of the following ideas did Darwin add to the theory of evolution that Lamarck did not have? - the idea that genes control the variation seen from generation to generation - the idea that all species have a common ancestor - the idea that small, gradual changes in an organism lead to a new species - the idea of natural selection and the survival of the fittest
an organism may change over time, but it never actually becomes extinct
Which of the following is NOT one of Darwin's ideas concerning evolution? - all organisms share a common ancestor - all organisms struggle to survive - an organism may change over time, but it never actually becomes extinct - an organism with a beneficial modification has a better chance to survive and reproduce
Gradual changes in organisms over time create new types of organisms
Which of the following is an accurate definition of the theory of evolution? - Gradual changes in organisms over time create new types of organisms. - Life is continually created from non-living material. - The diversity of life cannot be explained by descent from a common ancestor. - Geological processes are responsible for the origin of life.
Charles Lyell
Which scientist is credited with this belief: believed that natural geological forces have transformed the face of the earth over long periods of time - Charles Darwin - Thomas Malthus - Alfred Russel Wallace - Jean-Baptiste de Lamarck - Charles Lyell
Alfred Russel Wallace
Which scientist is credited with this belief: believed that natural selection led to evolution but was not given as much recognition as Darwin - Charles Darwin - Thomas Malthus - Alfred Russel Wallace - Jean-Baptiste de Lamarck - Charles Lyell
Jean-Baptiste de Lamarck
Which scientist is credited with this belief: believed that organisms acquired traits and passed on those traits to their offspring; credited as having one of the first theories of evolution. - Charles Darwin - Thomas Malthus - Alfred Russel Wallace - Jean-Baptiste de Lamarck - Charles Lyell
Thomas Malthus
Which scientist is credited with this belief: believed that unlimited human population growth would lead to poverty and famine - Charles Darwin - Thomas Malthus - Alfred Russel Wallace - Jean-Baptiste de Lamarck - Charles Lyell
Charles Darwin
Which scientist is credited with this belief: published beliefs in his book "On the Origin of Species"; explained how natural selection could account for the diversity of life - Charles Darwin - Thomas Malthus - Alfred Russel Wallace - Jean-Baptiste de Lamarck - Charles Lyell
