A mule is a hybrid between a horse and a donkey (a male horse and a female donkey). Mules cannot produce offspring so it is under Hybrid Sterility, which falls under Letter D: a postzygotic barrier.
A postzygotic barrier diminishes the ability to reproduce of hybrid offsprings.
A because if you look it up phytoplankton does uses photosynthesis to produce food.
Bacteriophage, which are also referred to as simply “phage” or a bacterial virus
Answer:
a sugar, a water molecule, and a nitrogenous base
Explanation: