Across
- 2. includes all parts of earth that have life
- 4. describes how organisms are placed in a certain area
- 5. the departure of individuals from a certain area
- 6. includes all of the living things,non-living things and their environment within an area
- 11. tell of the relative amount of organisms of each age inside of a population
- 12. tells how a population's original exponential increase is slowed and comes to a halt due to limiting factors
- 14. is the balance of males to females
- 15. the arrival of individuals from outside a certain area
- 18. Are characteristics of the environment that restricts population growth
- 19. these are visual tools scientist use to display the age structure of populations
- 21. is a seasonal motion into and out of a certain area
- 22. is the study of how organisms interact with the environment and themselves.
- 25. the greatest ability to produce offspring in perfect conditions
- 26. the maximum population size a certain environment can handle
- 27. parts of an ecosystem that were never living
Down
- 1. growth whose rate becomes more brisk in proportion to the growing total number or size
- 3. are limiting factors whose influence is not affected by population density. Basically the opposite of the dependent
- 7. the number of individual organisms in a certain population at a certain time
- 8. a certain environment that an organism lives in
- 9. is a group of individuals
- 10. shows how the likelihood of death varies with age
- 13. parts of an ecosystem that is living or used to be
- 16. when influence changes with population density
- 17. is all the populations in an area
- 20. the number of individuals located within a population per unit area
- 23. is a group of species that live together at the same time
- 24. anything an organism needs including essential needs to live