It’s negative because the small fish provide food for the bigger fish
Top-down effects imply control through predation, including fishery, while
bottom-up effects imply control through food abundance, often thought to be driven by climate or nutrient load.
<h3>What is Top down regulation ?</h3>
The top-down effect refers to a higher trophic level influences the community structure of a lower trophic level through predation.
<h3>What is Bottom up regulation ?</h3>
The bottom-up effect means that a lower trophic level in the biological network affects the community structure of higher trophic levels by means of resource restriction
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1. Moro Gulf earthquake (1976)
2. Luzon earthquake (1990)
3. Casiguran earthquake (1968)
4. Mindoro earthquake (1994)
5. Bohol earthquake (2013)
Answer:
Three examples of fossil fuels are:
1). Petroleum
2). Coal
3). Natural gas
They both involve topics related to the natural world, and are both based on empirical evidence. <span />