Firstly species around the world are constantly dying, therefore having an exact number is impossible. Also there are countless may species that haven’t been identified or died before we could even identify them. But to answer you question you would have 2 more species if you added 2 more to the collection.
Glucose is converted to pyruvate and nad+ is converted into NADH
C is the answer I think would be correct
The reason why you cant test the activity of Lipase in test tube 5 is because in test tube 5 the PH is low. This decrease in pH might make it difficult to detect the activity of lipase since the optimal ph of pancreatic lipase is around 8.0. generally high or low PH result to complete loss of activities of most enzymes.
Needs a diagram or sequence
DNA. mRNA. tRNA
A- U. A
T- A. U
G- C. G
C- G. C