D4.1

Edit Answers
12345678910111213141516
Across
  1. 3. The maximum population size that an environment can sustainably support.
  2. 5. Traits that are coded in DNA and can be transmitted to offspring.
  3. 6. The cumulative change in the heritable characteristics of a population over time.
  4. 8. Traits that are well adapted to an environment and help the organism survive.
  5. 9. An environmental factor that favors certain phenotypes over others.
  6. 11. Environmental factors like weather or natural disasters that affect populations regardless of size.
  7. 13. Characteristics developed during a lifetime that do not contribute to evolution.
  8. 14. The process of cell division that shuffles alleles through crossing over and random orientation.
  9. 15. The presence of natural differences in the phenotypes and genotypes of individuals in a population.
  10. 16. The original source of all new alleles and genetic variation.
Down
  1. 1. The maximum number of offspring an organism can produce if it reaches reproductive age.
  2. 2. The struggle between organisms for limited resources like food, water, and mates.
  3. 4. A form of selection where individuals with certain inherited traits are more likely to obtain mates.
  4. 7. The tendency of populations to produce more offspring than the environment can support.
  5. 10. A heritable characteristic that increases an organism's fitness in its environment.
  6. 12. The total collection of all alleles for all genes in a breeding population.