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Xyien's Natural Selection Crossword Puzzle

Across
Presence of sufficient food, habitat and mates.
is the relative frequency of an allele at a particular locus in a population, expressed as a fraction or percentage. Specifically, it is the fraction of all chromosomes in the population that carry that allele.
change in a species over time; process of biological change by which descendants come to differ from their ancestors.
a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
seasonal movement of animals from one region to another
is the basic physical and functional unit of heredity
Temperature, weather conditions or geographical access.
the variety of life in the world or in a particular habitat or ecosystem. Genetic, relating to genes or heredity.
differences in physical traits of an individual from the group to which it belongs.
to make a copy, representation, duplicate, or close imitation
occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene.
Down
is a mechanism of evolution that works by altering the heritable traits of a population.
variation in the DNA sequence in each of our genomes. ... Individuals of a species have similar characteristics but they are rarely identical,
is any movement of individuals, and/or the genetic material they carry, from one population to another.
the passing on of physical or mental characteristics genetically from one generation to another.
change in allele frequencies due to chance along, occurring most commonly in small population.
one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
a change or the process of change by which an organism or species becomes better suited to its environment.
a change or the process of change by which an organism or species becomes better suited to its environment.
seasonal movement of animals from one region to another