In a Particular Case of Secondary Succession,three Species of Wild

question 2

Multiple Choice

In a particular case of secondary succession,three species of wild grass invaded a field.A fourth species's seeds were also dispersed to this field,but despite being adapted to the abiotic conditions,this fourth species did not establish.A possible factor in this secondary succession was

• A)equilibrium.
• B)facilitation.
• C)immigration.
• D)inhibition.
• E)parasitism.

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Definitions:

Average Variable Cost

The total variable costs of production divided by the quantity of output, representing the per-unit variable cost.

Marginal Cost

The cost incurred from producing an additional unit of a product.

Average Variable Cost

The total variable costs (costs that change with the level of output) divided by the quantity of output produced, indicating the cost of producing an additional unit.

Marginal Cost

The boost in expenditure linked to creating an additional unit of a good or service.