Question

Long-term changes in the number of families of continental and marine organisms is best explained by which type of curve?

Answer 1

It can be explained by the exponential curve. A rapid growth in population size is called exponential growth. Exponential curve when the population increases by a constant amount each year, lambda. An exponential growth produces a J-shaped curve. The following equation describes an exponential growth Nextom (h where: N -number of worm s in the population nextmontih this month λ-exponential growth constant However, at some point the population does not have enough nutrients and other resources (limiting factors) for the growth, reproduction and development. This type of growth is called logistic growth and it has an S" shaped curve. The expo nential cure has the more carryi ng capacity than the logistic growth curve The exponential curve of continental organisms is as follows

The exponential curve of continental organisms is as follows Age (Myr) 180500400200 1200 6800 . Palaeoz esozoic Cen Geological time The exponential curve of marine organisms is as follows

Age (Myr) 200 600 1200 400 800 5 400L Palaeozoicsozoic Cen Geological time