Ecology Study Guide 2026
Everything you need to pass the Ecology exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 Ecology Exam Format at a Glance
📚 Ecology Topics to Study (62)
✍️ Sample Ecology Questions & Answers
1. What does a survivorship curve Type II indicate about a population?
Type II survivorship curves are linear on a log scale, indicating a constant probability of dying at any age regardless of age class.
2. Which pattern of population dispersion is most commonly observed in nature and often results from random resource availability?
Clumped dispersion is the most common pattern, arising because resources are often patchy and social behaviors attract individuals to the same areas.
3. Which of these is a morphological adaptation?
A morphological adaptation refers to a structural or physical feature of an organism that helps it survive in its environment. A desert plant storing water in its leaves is a clear example of such an adaptation, as the succulent leaves are a physical modification for water conservation. These adaptations are visible and relate to the organism's body form.
4. How does deforestation affect the local carbon cycle?
Deforestation removes living carbon stores and often involves burning, releasing stored carbon as CO₂ while eliminating future uptake capacity.
5. Which sampling method is most appropriate for estimating the density of a sessile (non-moving) plant population?
Quadrat sampling counts individuals within randomly placed plots, making it ideal for immobile organisms like plants.
6. A life table shows that lx drops steeply in the first week of life then levels off. This pattern corresponds to which survivorship curve?
Type III survivorship curves, typical of many invertebrates and fish, show most deaths occurring very early in life with survivors having much better prospects.