The correct answer is: oxaloacetate
Anaplerotic reactions are chemical reactions that form intermediates that can be used in the further steps of metabolic pathways. These reactions are very important, because it is crucial for the cell to regulate concentrations of TCA cycle metabolites and intermediates.
The reaction in which pyruvate is converted to oxaloacetate is catalyzed by pyruvate carboxylase and it occurs in mitochondria. Also, pyruvate can be converted to L-malate, in a similar way.
Fishing I think would be onw
B. an ecosystem
An ecosystem contains a community (several species of organisms) and the environment including air, water, and more.
Answer:
Sand, Silt and Clay
Explanation:
The sand is most coarse so it deposits easier and more often than the clay being finest, but there would still be clay just less of it than sand
D is the answer
It’s cell,tissue,organ, organ system
