Question

Which of the following best illustrates ecological succession? See Concept 54.3 (Page 1227) View Available Hint(s) Which of the following best illustrates ecological succession? See Concept 54.3 (Page 1227) Decomposition in soil releases nitrogen that plants can use. Grass grows on a sand dune, is replaced by shrubs, and then by trees. Overgrazing causes a nutrient loss from soil. Introduced pheasants increase, and native quail populations disappear. A mouse eats seeds, and an owl eats the mouse.

Answer 1

The scenario of grass being replaced by shrubs, and then trees on a sand dune exemplifies ecological succession, specifically secondary succession.

Step-by-step explanation:

The example that best illustrates ecological succession is: 'Grass grows on a sand dune, is replaced by shrubs, and then by trees.' This process is an instance of secondary succession, where an area that previously supported life and has nutrient-rich soil undergoes a series of changes in its community structure over time. Initially, pioneer species like grasses colonize the area, which is then followed by a succession of plant communities including shrubs and finally trees, leading to a more complex ecosystem.

Answer 2

The correct option is this: GRASS GROW ON A SAND DUNE, IS REPLACED BY SHRUBS AND THEN BY TREES.

Step-by-step explanation:

Ecological succession refers to the gradual process by which the living organisms in a particular environment are replace overtime. Succession usually occurs as a result of disturbance to the original environment. Ecological succession can be termed as primary or secondary succession based on the type of environment in which the succession occur. One unique features of ecological succession is that lower living organisms are usually replaced with advanced living organisms as time goes on. For instance, in option D, the grasses were replaced by shrubs, which are also later replaced by trees.