Answer:
Over the ages the tendency of crop improvement efforts has been to select varieties with traits that give the highest return, largely by concentrating on genetic strains that combine the most desirable traits. The resulting homogeneity and uniformity can offer substantial advantages in both the quantity and quality of crop harvested, but this same genetic homogeneity can also reflect greater susceptibility or pathogens. Thus it appears the more that agricultural selection disturbs the natural balance in favor of variety uniformity over large areas, the more vulnerable such varieties are to losses from epidemics. The increased risks presented by genetic selection and the increased cultivation of only a few selected cultivars are easily perceived. Chapters 1 and 2 of this reports focus on crop vulnerability, because it is a broadly recognized problem. The issue of genetic vulnerability, however, is only one of several important problems affecting the management of global genetic resources.
Testable
repeat
None of the above
The control group and one variable
?not sure, sorry
large
team(usually)
both a and c
?not sure, double sorry. ( I THINK its relationships, but I'm not 100% sure)
All of the above
Answer:
I think its B. because the patients red blood cells will burst because the blood is hypertonic compared to the cells
Answer:
<em>Ibn Sina</em>
Explanation:
Ibn Sina was an Islamic philosopher and scientist. There were many fields of research on which he worked but his services to the field of medicine are remarkable. Ibn Sina learned that patients who were sick with a particular type of disease could spread the disease from one person to another. He knew there was a factor involved in the spreading of diseases.
Ibn Sina wrote all his observations and findings in books which are of great importance even today.
