before the invention of paper, what did the ancient chinese write on?
(5 points)

a.

bamboo, shells, bones, and wood

b.

bamboo, wood, bones, and cotton

c.

shells, bones, cotton, and bamboo

d.

wood, cotton, bones, and shells

A.  Bamboo, shells, bones, and wood

Explanation: Before its invention, bones, tortoise shells, and bamboo slips were all used as writing surfaces, but as Chinese Hemp fiber and silk were used to make paper but the quality was far from satisfactory. Books at that time were made of wood or bamboo slips so they were heavy and occupied a lot of space.

well i cant say as there are no answers for me to choose from.

explanation:

sorry!

genetics is the study of how dna works, the methodologies defining the new recent technologies allow scientist to have a panoramic view of the entire dna landscape, especially how genomes interact with their environment, including off course, factors outside their organisms.

thus is very possible the existence of both scenarios, where populations of isolated individuals have different genetic traits, and share traits related to genetic mutation, due rats can easily travel overseas using human transport channels. so scientists could get a vast number of data, including human interaction, evolution of rodents, health development, spread of infections, development of new organisms, how genomes evolve in different environments and so on.