Midterm II Practise Questions W2013 Key UPDATED

56 an example from the text contrasts three forests

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: environment will increase. F. The population will become monophyletic. 44. The exponential model of population growth assumes A. B. C. D. That birth rate is equal to death rate. That density- dependent factors are involved Ideal conditions with no limits to growth. That species are K- selected. 45. Which of the following is not a density- dependent factor affecting population size? A. B. C. D. Crowding Intraspecific competition Nighttime air temperature Spread of disease. 46. Field observation suggests that populations of a particular species of herbivorous mammal undergo cyclic fluctuations in density at 3- 5 year intervals. Which of the following represent (a) plausible explanation(s) of these cycles? A. B. C. D. E. Periodic crowding affects the endocrine system, resulting in increased aggression. Increases in population density lead to increa...
View Full Document

This test prep was uploaded on 02/20/2014 for the course BIOLOGY 1001 taught by Professor Tamarakelly during the Spring '13 term at York University.

Ask a homework question - tutors are online