Symaptric speciation is the formation of new species in populations that live in the same geographic area, while allopatric speciation occurs when the population is separated by a geographcial area. So, according to this: The difference between the sympatric speciation and the allopatric speciation is that sympatric speciation involves a behavioral barrier, while allopatric speciation involves a physical barrier.
Amino acid reactions. Amino acids via their various chemical functionalities can undergo numerous chemical reactions.
Answer:
Contagious is a method in which a bloodborne pathogen may be transmitted
Explanation:
Contagious are contacted as a result of transmission through blood contact, serum, sweat among others where diseases are said to be infectious
I am inclined to say 1. core and mantle... but im not entirely sure...
sorry not much help at all!