Biology Crossword

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Across
  1. 6. It's when a species is still valid today and is an anti-synonym of extinct.
  2. 10. The haploid set of chromosomes in a gamete or microorganism, or in each cell of a multicellular organism.
  3. 11. Animals that migrate do not return to the land they left.
  4. 12. It's the transfer of genetic material from one population to another.
  5. 13. It's a variation of the same sequence of nucleotides at the same place on a long DNA molecule, as described in leading textbooks on genetics and evolution.
  6. 16. It's the separation of the members of a population and it happens when an avidity is divided by new formations.
  7. 17. When individuals of intermediate phenotype are less fit than those of superior and inferior phenotypes, thus favoring the extremes.
  8. 18. Called an island group or island chain, is a chain, group, or collection of islands, or sometimes a sea containing a small number of scattered islands.
  9. 19. When an animal leaves their home because the habitat is no longer ideal for them and they need to find a more suitable environment.
  10. 20. when individuals with traits on one side of the mean in their population survive better or reproduce more than those on the other.
Down
  1. 1. The inability of a species to reproduce successfully with related species due to geographic, behavioral, physiological, or genetic differences.
  2. 2. It's the complete disappearance of a species from the earth, that is, species of plants or animals that no longer exist on this planet.
  3. 3. It's variation in the relative frequency of different genotypes in a small population.
  4. 4. It's the rapid diversification of a single lineage into many species that inhabit a variety of environments or use a variety of resources and differ in traits required to exploit these.
  5. 5. It's the condition of an allele or genotype in a gene pool where the frequency does not change from generation to generation.
  6. 7. When two or more species reproduce at different times.
  7. 8. It's a type of natural selection in which genetic diversity decreases as the population stabilizes at a particular trait value.
  8. 9. The combination of all the genes present in a reproducing population or species.
  9. 14. It's the process through which populations of living organisms adapt and change.
  10. 15. It's the relative frequency of an allele at a particular locus in a population, expressed as a fraction or percentage.