Across
- 2. describes a population or species that is physically isolated from other similar groups by an extrinsic barrier to dispersal.
- 5. the development of a new species
- 7. The process that results in the adaptation of an organism to its environment by means of selectively reproducing changes in its genotype, or genetic constitution.
- 9. barriers that act before fertilisation, ensuring preferential acceptance of conspecific pollen
Down
- 1. a process of gradual change that takes place over many generations, during which species of animals, plants, or insects slowly change some of their physical characteristics
- 3. a class of things of the same kind and with the same name
- 4. Any procedure in which a given species of organism, present in a particular sample or environment, is obtained in pure culture.
- 5. populations, varieties, or species that occur in the same place at the same time.
- 6. barriers that act after fertilisation, resulting in hybrid inviability and hybrid breakdown that reduces or prevents reproduction in the next generation.
- 8. an offspring of two animals or plants of different races, breeds, varieties, species, or genera