Imagine that you have crushed and sized a sample of rock containing hematite, a valuable and very dense mineral. You now have a large mixture of high-density hematite particles and lower-density waste rock particles. How do you think you could use this difference in density to separate the hematite particles from the waste rock?

What is the inability of an individual or a society to achieve a minimum standard of living known as ?

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen

Omg substrates with the same size and shape as the active site will bind to the enzyme. why is the key labeled the “bad” substrate?