Explanation:
The watermelon fruit when is covered by the molds, a type of fungus which can grow on the moistened substances. The molds can be characterized by their black, green and white spores.
The molds grow on the moistened surface by growing their hyphae which can form mycelium. These hyphae continuously produce enzymes which can breakdown the organic matter present in the watermelon.
Therefore, the matter and energy of the watermelon are transferred to the molds as it forms the next trophic level in the food chain.
The answer would be secondary succession.
Primary succession happens before an ecosystem is established. In contrast to it, secondary succession happens after a disaster that destroys most of the species in the land.
In this case, the ecosystem is already established. The forest fire is the disasters that destroy the ecosystem, allowing the secondary succession.
The correct answer is sympathetic nervous system.
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The sympathetic nervous system is a component of the autonomic nervous system, together with the parasympathetic system. Their functions are opposite but coordinate to maintain homeostasis. The sympathetic system has a role to control the body's response during perceived threat (fight and flight reactions). According to this, it dilates the pupils, contracts the muscles, increases heart rate...</span>
<span>There are no choices given, but the event was most likely a physical one that would have barred the squirrels from seeing each other. Squirrels are a social creature, and the event that would have separated the populace could have been anything from a large fire to an earthquake that separated the squirrels from each other.</span>