Across
- 2. individuals are spread randomly, often when resources are abundant and evenly available
- 4. Characterized by a constant mortality rate throughout an organism’s lifespan
- 5. when birth and immigration exceed death and emigration leading to a population increase
- 6. The process whereby organisms better adapted to their environment tend to survive and produce more offspring
- 7. The idea that individuals with traits that are better suited to their environment have higher biological fitness
- 8. determines how the size of the population changes or stays the same over time
- 10. r-selected species characterized by high mortality rates in early life, followed by relatively higher survival rates for individuals that reach adulthood
- 12. occurs when a population grows faster and faster as time goes on
- 14. A group of organisms that are able to reproduce fertile offspring
- 17. k-selected species characterized by high survival rates early in life, followed by a rapid decline in later life
- 20. The probability of an individual of a population surviving to a particular age
- 22. Any heritable trait that increases an organism’s ability to survive and reproduce in its environment
- 24. a group of individuals of the same species living in the same area at the same time
- 28. Adaptations in how an organism acts that improves its chances of survival and reproduction, often reducing compe
- 29. consumption in which an organism eats plants
- 30. the maximum number of individuals of a species that an environment can support
- 31. Different form of the same gene
- 33. the area where a population is found
- 34. The ability to survive to reproductive age, find a mate, and produce fertile offspring
Down
- 1. when the population remains a stable size with birth and immigration rates equal death and emigrations rates
- 3. do not rely on the density of a population
- 6. when deaths and emigration exceed births and immigration, causing a population decline
- 9. organisms move out of a population
- 11. depend on the density of a population
- 13. Differences in traits among individuals of the same species
- 15. individuals are grouped in patches, often around resources
- 16. The change in heritable characteristics in a population over successive generations
- 18. the number of individuals of a species living per unit area in a habitat
- 19. Genetic characteristics among similar organisms in a species that is passed on from one generation to another
- 21. When a species evolves traits that allow it to thrive in a specific environment or role, often reducing competition
- 23. organisms move into a population
- 25. control the growth of a population and determine the carrying capacity of an ecosystem
- 26. occurs when exponential growth slows and eventually stops
- 27. individuals are evenly spaced, usually due to territorial behavior
- 32. a biological interaction in which one animal(predator) hunts, kills and eats another animal(prey) for nourishment and energy