Biology questions
20584 published questions with worked solutions.
- Which of the following is not an example of prey-predator relationship?
- In which of the following interactions both partners are adversely affected?
- On the rocky sea coasts of Scotland, the larger and competitively superior barnacle Balanus dominates the intertidal areas and...
- Level of competition between species depends on
- Gause's principle of competitive exclusion states that
- Species facing competition might evolve mechanism that promotes coexistence rather than exclusion. One such mechanism is
- An interaction in which one organism is benefitted and other is unaffected
- Between which among the following, the relationship is not an example of commensalism?
- Lichens represent an intimate mutualistic relationship between
- Mycorrhiza represents an intimate mutualistic relationship between
- The plant-animal interaction often involve coevolution of the mutualists, so that
- The interdependent evolution of the flowering plants and pollinating insects together is known as
- Under normal conditions positive growth or rapid increase in the population is indicated by
- Zero growth of population is indicated by
- In some cases, population density is measured in terms of biomass rather than in terms of number because
- Read the following statements. 1. In a population, birth rate and death rate refer to per capita births and deaths, respectively....
- Which of the following statements regarding species interdependence are true?
- Which of the following would necessarily decrease the density of a population in a given habitat?
- Biosphere is
- If a population of 50 Paramecium present in a pool increases to 150 after an hour, what would be the growth rate of population?