BIOLOGY-EVOLUTION & NATURAL SELECTION
UNIVERSITY OF TORONTO
HIGHLY STUDIED
GRADED A+
QUESTIONS AND ANSWERS
natural selection. ANSWER - process of evolution developed by Darwin, based on
four ideas: overproduction, variation, competition & environmental changes. It
explains how traits of a population can change over time.
evolution. ANSWER - Changes in a species' population over time.
homologous structure. ANSWER - similar structures inherited from a common
ancestor (ex. birds wings, reptile limbs); however these structures have different
functions.
vestigial structure. ANSWER - reduced or non-working structure that indicates
shared common ancestry (ex. human appendix)
embryo. ANSWER - organism's early prebirth stages of development
fossil records. ANSWER - Provides record of species, shows similar characteristics
between living and extinct
adaptation. ANSWER - Trait shaped by natural selection that increases an
organisms reproductive success
geographic isolation. ANSWER - isolation between populations due to physical
barriers
UNIVERSITY OF TORONTO
HIGHLY STUDIED
GRADED A+
QUESTIONS AND ANSWERS
natural selection. ANSWER - process of evolution developed by Darwin, based on
four ideas: overproduction, variation, competition & environmental changes. It
explains how traits of a population can change over time.
evolution. ANSWER - Changes in a species' population over time.
homologous structure. ANSWER - similar structures inherited from a common
ancestor (ex. birds wings, reptile limbs); however these structures have different
functions.
vestigial structure. ANSWER - reduced or non-working structure that indicates
shared common ancestry (ex. human appendix)
embryo. ANSWER - organism's early prebirth stages of development
fossil records. ANSWER - Provides record of species, shows similar characteristics
between living and extinct
adaptation. ANSWER - Trait shaped by natural selection that increases an
organisms reproductive success
geographic isolation. ANSWER - isolation between populations due to physical
barriers
