An energy pyramid is helpful in understanding the relationship between food and energy, because the most energy (generally grass, or plants) is at the bottom, and meat eating predators are at the tippy top (less energy). Producers, primary consumers, secondary consumers and tertiary consumers are all on the energy pyramid. I hope this was helpful:)
D both a and c sounds correct
Answer:
Lystrosaurus as known as or translates to 'shovel reptile'.
Lystrosaurus is the only fossils of this creature have only been found in anatartica, India and south Africa.
Explanation:
What might occur to its symbiotic match if commensalism abruptly evolved vanished?