The overall success of an ecosystem is best judged by the a) health of its producers eliminate b) availability of resources. c) numbers in each tropic level. d) interaction of biotic and abiotic factors.

 D) interaction of biotic and abiotic factors.

Explanation:

An ecosystem is a biotic community in which the living beings interact with their non-living physical environment. In the ecosystem the biotic factors such as plants, animals, humans and other living beings interact with the abiotic factors like soil, water, wind and others non-living components of the environment.

The overall success of an ecosystem is judge by the interaction of biotic and abiotic factors this is because of the fact that abiotic factors such as wind, water makes the living components of the ecosystem survive. In the absence of these factors no living form will sustain on earth.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.