i think that before the Krebs cycle begins, pyruvic acid, which has three carbon atoms, is split apart and combined with an enzyme known as CoA.
The type of asexual reproduction which is being represented is definitely C. Fission, because according to the data above the entity has divided into two or more parts which is a characteristics for the fission.
The immune system.
The immune system acts as a defense system of the body. It fights against bacteria, viruses and any other disease causing pathogens. Some chemicals can weaken the immune system and make them vulnerable.
Quartz have the less solubility during weathering. <span>Quartz is the rock forming mineral least susceptible to chemical attack at Earths surface.So rocks rich in quartz tend to have poor solubility during weathering.</span>
I believe vestigial structures are evidence of evolution because organisms inherit anatomy from their ancestors.
Hope that helps.
