Because people back then did not have enough access to technology like we do today
Specialized cells: White blood cells, muscle cells, nerve cells, and bone cells.
An amoeba is considered a "single celled animal". It does not classify as a specialized cell.
D. Water is a byproduct of cellular respiration.
Answer:
Allosteric enzyme
Explanation:
A K system is an allosteric enzyme for which the apparent affinity of the enzyme for its substrate is altered in the presence of effector and for which the apparent Vmax does not change. ... KM is a constant for any enzyme.