Answer:
<h2>Reduced ability to colonize the mammalian gut.</h2>
Explanation:
The Entner-Doudoroff Pathway (ED Pathway) is a metabolic pathway that is most notably in Gram-negative bacteria, some + bacteria and archaea. Glucose is the starting molecuke in the ED pathway and through a series of enzyme assisted chemical reactions it is catabolized into pyruvate.
Those mutants of E. coli lacking a key enzyme in Entner-Doudoroff (ED Pathway)Pathway leads to reduced ability to colonize the mammalian gut.
B) Geothermal energy
It is heat within the earth
White blood cells (D) aid in the immune system to fight infections.
It prevents being damaged and cross contamination from other objects that may disrupt the evidence