1. What is assumed for the mark-release-recapture process?
- The marked group form a niche of their own away from the unmarked group
- The proportion of marked:unmarked in the 2nd sample is greater than the proportion of the population as a whole
- That the method of marking doesn't make the organism more liable to predation
- The marked group have a high reproductive rate
1 of 16
Other questions in this quiz
2. What is a community?
- All the organisms of one species over the whole Earth
- Any collection of organisms
- All the populations of different organisms living and interacting in a particular place at the same time
- All the organisms of one species living in a particular place at the same time
3. What is an ecological niche?
- All the biotic and abiotic factors required for an organism to survive, reproduce and maintain a viable population
- The habitat of a particular group of organisms in the ecosystem
- All the biotic conditions required for an organism to live in a particular area
- The food eaten by one particular species in an area
4. Why is it difficult to prove that competition causes variations in a population?
- The data collected is very specific so it is difficult to establish a link
- Correlation on a graph is not shown
- Many other factors also influence population size
- Competition happens very quickly
5. Give an advantage of random sampling
- A cheaper alternative to systematic sampling
- Avoids bias in the collection of data
- Allows for more repeats to be taken
- More scientific