When the starfish were removed from the area as part of an experiment, the mussel population swelled and crowded out other species. The biodiversity of the ecosystem was drastically reduced. Payne's study showed that identifying and protecting keystone species can help preserve the population of many other species.
The correct answer is - D) It decreases by a factor of about 10%.
In the energy pyramid for an ecosystem, the energy levels are consistent throughout the food chain, thus the pyramid shape of it. The organisms that are at the bottom of the pyramid are the ones that gain 100% energy, and those are the producers. As they are consumed, they give energy to another organism, bu that organism gets a bit less, by approximately 10%. The 10% decline in the energy transfer as we go up the hierarchy of the food chain continues, so the organisms that are at the top of the food chain actually gain much less energy than the ones on the bottom of the pyramid. That results in those organisms that are at the top of the pyramid to have to consume much larger amounts of food in order to survive, while the ones closer to the bottom need to consume much less.
Answer:
Explanation:
Hydrogen bonding reduces extreme temperature shifts near large bodies of water.
Hydrogen bonding allows animals to cool themselves using perspiration because such a large amount of heat is needed to...
Hydrogen bonding keeps water in its liquid state over a wider temperature range than for any other comparable-sized...
Answer:
A
Explanation:
Primary productivity, in ecology, the rate at which energy is converted to organic substances by photosynthetic producers.
