Two species may interact in a variety of different ways. The interactions may be positive, negative or simply neutral to the organisms involved.  
(i) Complete the table below which summarises some interactions  
Interaction Effect on species 1 Effect on species 2 Explanation
Predation + - Species 1 kills and eats species 2


(ii) Explain why intraspecific competition may be described as a density-dependent factor affecting population growth



 Back   Home