68) Species that introduced to new habitats, such as islands, : 1380996.
68) Species that are introduced to new habitats, such as islands, often exhibit very high growth rates, but then growth rates level off. Explain this phenomenon, and describe the different patterns of growth.
69) What would be the “r” value or intrinsic rate of growth of a population that had 50 births and 40 deaths per year out of 1000?
70) Environmental pressures on a population, such as temperature and pH, are density ________ factors.
71) An “S” shaped curve would be indicative of ________ growth.
72) Why are K-selected species also known as equilibrium species?
73) Species with individuals that die equally or linearly at all different ages throughout their life span are known as ________-loss species.
74) Species with populations that are likely to rise and fall rapidly in reaction to variations in the environment are referred to as ________ species.
75) What is the total fertility rate number associated with zero population growth, and why?
76) What factors may affect the carrying capacity for a species in an environment? Is the carrying capacity usually a fixed number, and why or why not?
68) Species that introduced to new habitats, such as islands, : 1380996