Chapter 15 Review:†
Theory of Evolution
or change over time, is the process by which __________ organisms have
descended from ___________ organisms.†† This is an example of a ___________ or a well-supported testable
explanation of phenomena that have occurred in the natural world.
person who observed variations in the characteristics of animals and plant
on the different islands of the Galapagos? ____________________
addition to observing living organisms, Darwin studied the preserved remains of
ancient organisms called _________________
his travels on a ship called the ____________, Darwin made numerous _____________ and
collected evidence that led him to propose a revolutionary ___________
about the way life changes over time.†
- Darwin observed that
the _______________ of many animals and plant varied noticeably among the
different islands of the Galapagos.
and ____________ helped scientists recognize that
Earth is many millions of years old and the processes that changed Earth
in the __________ are the same processes that operate in the ____________.
of the following ideas proposed by Lamark was
later found to be incorrect?
characteristics can be inherited.
species were descended from other species.
things change over time.
are adapted to their environments.
- In his
book, _______________________, Darwin
proposed a mechanism for evolution that he called ______________________.
among individuals of a species are referred to as ________________
would an animal breeder use to produce cows that give more milk?
- Overproduction†††††††††††††††††††††† b.† Acquired characteristics
isolation†††††††††††††††††††† c.† Artificial selection
inherited characteristic that increases an organisms ability to survive
and reproduce in its specific environment is called ________________
concept that each living species has descended, with changes, from other
species over time is referred to as _________________
is a result of
- Adaptations†††††††††††††††c.† common descent
selection†††††† d.† variation
that are better suited to their environment---that is, with high levels of
___________---survive and reproduce more successfully.† This was a process that Darwin called
- Darwin argued that
living things have been ______________ on Earth for millions of
years.† Evidence for this process
could be found in the _____________, the geographical distribution of
living species, _______________________ of living organisms, and similarities
in early development.
that have different mature forms but develop from the same embryonic
tissue are ___________________.