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Origin and Diversification of Life

Across
When a single species splits into two different species
Sympatric speciation that occurs when hybrids of closely related species can reproduce with other similar hybrids (i.e. hybrids are not sterile!)
A type of sympatric speciation where uneven chromosomal splitting during meiosis prevents gametes from fusing with "normal" gametes
Rapid evolution of many forms from a few ancestors into many new species
Interbreeding of closely related species
Evolution that occurs when homologous traits evolve from a single, similar looking ancestral trait
A group of organisms that all share a common ancestor, and the group contains ALL of the decedents of that ancestor
The species definition that relies on species' abililty to successfully reproduce
Down
A picture that represents the ancestry of groups of organisms in relation to one another (two words)
A type of reproduction that makes species classification according to the biological species concept difficult
Speciation that occurs after geographic separation
The species definition that relies on the physical characteristics of an individual
Barriers to reproduction that prevent fertilization of gametes
Evolution that happens within populations that coexist in a location, share similar environmental challenges and therefore evolve analogous characteristics
Barriers to reproduction that occur after fertilization but prevent offspring from being able to reproduce
The ability to carry out metabolic activiites