Final Flashcards
(40 cards)
A well-tested explanation that unifies a broad range of observations is …
A theory
The process by which individuals that are better suited to their environment survive and reproduce successfully is called …
evolution
A structure or organ that (usually) serves no useful function in an organism, is called a(n) …
vestigial organ
Competition among members of a species for food, living space, and other necessities of life, is called …
struggle for existence
Structures that have different mature forms in different organisms but develop from the same embryonic tissues, are called …
homologous structures
Structures of different species that are similar in function but not necessarily in structure and which do not derive from a common ancestor, are called
analogous structures
An inherited characteristic that increases an organism’s chance of survival, is called a(n) …
adaptation
When humans select certain traits for breeding purposes from the natural variation among different organisms, this is called …
artificial selection
The principle that all living things were derived from common ancestors, is called …
Common descent
The process by which modern organisms descended from ancient organisms (change over time), is called …
Evolution
This person wrote Principles of Geology and explained how Earth could change over time and that Earth was extremely old.
Charles Lyell
This person thought that organism acquired traits by using their bodies in new ways (use versus disuse, tendency towards perfection, inheritance of acquired traits).
Jean Baptiste Lamarck
This person wrote On the Origin of Species, sailed on the HMS Beagle to the Galapagos Islands, and developed the central idea of evolution by natural selection (struggle for existence, natural selection / survival of the fittest)
Charles Darwin
Which of the following is NOT evidence of evolution?
Analogous structure
True or false? The preserved remains or evidence of an ancient organism, is called a fossil.
True
The ability of an organism to survive and reproduce in its environment, is called ..
Fitness
Which type of adaptation does the male Peacock display when it does its courtship dance?
Behavioural
Which type of adaptation are the ears of the Desert Fox an example of?
Structural
Determining the age of fossils based on how close they are to the surface of the Earth, is ..
Relative dating
True or false? Biochemical evidence compares the DNA of different organisms to see how closely related they are.
True
The combined genetic information of all members of a particular population forms a …
gene pool
Traits that are controlled by more than one gene, such as human height or eye colour, are known as …
polygenic traits
The type selection in which individuals of average size have greater fitness than small or large individuals is called …
stabilizing selection
The type of selection in which individuals at one end of a curve have the highest fitness is called
directional selection