look at this web site https://www.forbes.com/sites/eco-nomics/2011/01/14/problems-with-leed-certification-another-perspective/ if it helps you welcome if it dose not at lest i tried:)
Answer:
creatures at the top of the food chain
Answer:
Feedback Inhibition
Explanation:
Yes, this mechanism being one of importants for the regulatory mechanism in our cells. They use non competetive inhibitors. Example: Synthesis of amino acids, etc.
To answer your question: the nucleus has a membrane.
