Based on your understanding of ecological pyramids, is the annual productivity of a typical urban (city) backyard large enough to support a house cat restricted to the backyard or will the cat require food supplements in order for it to survive?
A) The producer productivity is large enough for just the one cat to survive.
B) The cat must be fed additional food or it will starve.
C) The cat will be able to survive if there is at least one fruit tree in the backyard.
D) The cat will be able to survive if the backyard consists only of grass.
E) The producer productivity can support the cat, along with several offspring.

Question

Quizplus · Accepted Answer

Ecological pyramids show that energy is lost between trophic levels, with only about 10% of energy being transferred from one level to the next. In an urban backyard, the primary producers may consist of grass, flowers, and possibly a few trees or shrubs. This productivity may not be sufficient to support a house cat, which is a tertiary consumer. Therefore, the cat would require additional food supplements, such as commercially-produced cat food, in order to survive.

Based on Your Understanding of Ecological Pyramids, Is the Annual