I think the answer is A) policeman
because one of the cell walls functions is to protect the cell and control what enters and what leaves
C.) The substrate for amylase, starch, is not present.
Answer:1Zn+2HCl------1ZnCl2+1H2
Explanation:
A single replacement reaction is one in which a more reactive element displaces a less reactive element from its salt solution.Thus zinc can easily lose electrons as compared to hydrogen and result in the formation of zinc chloride and hydrogen.
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
Autolapithecines are early hominid fossils promoted direc ancestral to humans. Primarily because autralopithecines had the head of chimpanzee but the body that allowed them to walk up right like humans. Their fingers, chest, hand bones, straining gain, shoulders, abdomen, inner ear canals developmental patters, toes and teeth ping point that they were human ancestors.
