Describe the tricarboxylic acid cycle (Krebs cycle) found in most eukaryotic cells. List all nine enzymes needed for this metabolic pathway, along with their substrates (include the number of carbon atoms in each substrate), products (include the number of carbon atoms in each product), and any high-energy molecules generated or consumed by each enzyme.

How was the climate when the ambulocetus was alive

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.

Wich organism obtains its energy from dead or decaying matter