Terms in this set (12)
The form or shape of an organism
Ability of an organism to survive and reproduce in its environment
The mechanical, physical, and biochemical function of living organisms
Groups of organisms, as species, may change with the passage of time so that their descendants differ morphological and physiologically from their ancestors
A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
Struggle for existance
members of each species compete regularly to obtain food, living space, and other necessities of life
Humans select for those natural variations that they find useful
Descent with modification
principle that each living species has descended, with changes, from other species over time
The driving force of natural selection - any phenomenon which alters the fitness of organisms within a given environment
any inherited characteristic that increases an organism's chance of survival
A well-tested explanation for a wide range of observations or experimental results.
Inheritance of acquired characteristics
The hypothesis that organisms' bodies change during their lifetimes by use and disuse and that these changes are inherited by their offspring