It is believed to be 1000 years ago
Answer:
DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies. Differences in the genetic code are the reason why one person has blue eyes rather than brown, why some people are susceptible to certain diseases, why birds only have two wings, and why giraffes have long necks
Explanation:
Answer:
it is located on part of the neurons.
Explanation:
Myelin is a fatty substance that wraps around nerve fibers and serves to increase the speed of electrical communication between neurons.
Simple sugars provide no other nutritional values besides energy; cause jolt in energy and then a run-down soon after. Complex sugars provide an extended sustained source of energy that are believed to be better for health and energy.
Answer:
Trial A is the blue line.
B is the orange line.
C is the green line.
The trial in which the disease spread the least was Trial C.
3 people never got the disease.
Explanation:
The more immune, the less the disease spread.
In Trial C, if 10 people were immune and 7 were infected and there were 20, then 3 never got infected.