Explain Gause's competitive exclusion principle and one way in which species avoid it.
Organisms and Populations
Original Khojo Papers practice question — not from a past board paper.
In mutualism both species benefit, as in a lichen. In commensalism one benefits and the other is unaffected, as an orchid growing on a mango branch. In parasitism one benefits at the expense of the other, as in the human liver fluke. Predation and competition are further kinds.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Amensalism harms one species while the other is unaffected.
From the same topic and chapter, at a similar level.
Explain Gause's competitive exclusion principle and one way in which species avoid it.
Organisms and Populations
What are the three ways in which an organism can respond to a stressful environment? Give an example of each.
Organisms and Populations
Distinguish between exponential and logistic population growth, and give the equation for each.
Organisms and Populations
Define apomixis and parthenocarpy, and state the practical use of each.
Sexual Reproduction in Flowering Plants
Describe the structure and functions of the placenta.
Human Reproduction
Name the hormones that control the menstrual cycle and state the function of each.
Human Reproduction