I'm not 100% percent on this but my class is working on cells and I believe it to bee either letter B. or D. to narrow it down for you
A Star fish
Radial symmetry is when it all comes out from one point (the middle)
In animals, the circulatory system performs a similar function because it transports vital nutrients around the body of the animal, just like how xylem and phloem transport water, minerals, and sugar to different parts of the plant.
Answer
Since the whole ecosystem depends on the primary producers for survival, definitely all the sizes of the population in the ecosystem will be affected. The producers(green plants ) makes use of sunlight to supply the needed energy as food substances for the consumers ( rabbit) to feed on, and the Consumers is eaten by the top level consumers e.g Leopard.
Therefore, if the population of top level consumers is decreasing, this indicated that the secondary consumers population is reducing, due to reduction in energy obtained from primary producers which has dropped due to the decline in productivity.Hence nothing fort the top consumers to feed on.
Explanation:
