Evolution Desert Crossword

The movement of alleles from one population to antother
similar features of embryos in different organisms; suggests there was a common ancesestor
Random change in DNA of a certain gene. Occur frequently in gene pools and can pass to offspring.
traces of organisms that existed in the past.
The process of biological change where descendants change from the previous ancestors
proposes that present geologic processes are the key to the past
certain variations that allow an organism to better survive in its environment than other members of the same species
similar structures that appear in different organisms with different functions
remnants of organs or structures that were functional in early ancestors
the production of too many organisms. Although the chances some will survive, makes competition for resources greater
A mechanism by which individuals that have inherited beneficial adaptations cause the organism to produce more pass the favored trait to more offspring, This causes it to be more frequent.
where humans change a species by breeding it for certain traits
the observable change in allele frequency of a population over time
some alleles decrease in frequency and become eliminated. Some increase in frequency and become fixed.
occurs when a species as a whole fails to adapt to its environment.