Across
- 4. A close and long-term interaction between two different species.
- 5. The ability of an organism to survive and reproduce under a range of environmental conditions.
- 6. The effect of human activity on the natural environment, such as pollution, deforestation, or climate change.
- 11. in species It means the species may be more vulnerable to diseases and environmental changes.
- 12. When individuals or species vie for the same limited resources such as food, water, or space.
- 13. A type of symbiosis where both species benefit, e.g., bees and flowering plants.
- 14. Succession that occurs on surfaces where no soil exists, such as after a volcanic eruption.
- 17. Succession that occurs in areas where a disturbance has destroyed an existing community but left the soil intact.
- 20. The process of change in the species structure of an ecological community over time.
- 22. The maximum number of individuals of a species that an environment can support sustainably.
- 23. The movement of individuals into a population.
- 24. Any factor that restricts the size of a population.
- 26. The movement of individuals out of a population.
- 27. Factors that affect population size regardless of density, such as natural disasters.
- 28. The natural environment where an organism lives and obtains what it needs to survive.
Down
- 1. A type of symbiosis where one species benefits and the other is neither helped nor harmed, e.g., barnacles on whales.
- 2. Factors that affect population size based on the population's density, such as disease and competition.
- 3. The way in which individuals are spread out across a given area.
- 7. They can outcompete native species for resources and disrupt local ecosystems.
- 8. A species that has a disproportionately large effect on its environment relative to its abundance.
- 9. The role or “job” of an organism in its environment, including what it eats and how it interacts with others.
- 10. The variety of life in the world or in a particular habitat or ecosystem.
- 15. A growth pattern where the population size increases rapidly under ideal conditions.
- 16. An interaction where one organism (the predator) hunts and eats another (the prey).
- 18. A type of symbiosis where one species benefits at the expense of the other, e.g., ticks on mammals.
- 19. The number of individuals per unit area, different from how individuals are distributed.
- 21. A growth pattern that levels off as the population reaches the carrying capacity.
- 22. A stable community that no longer goes through major ecological changes.
- 25. The first species to colonize previously disrupted or damaged ecosystems.
