I am not 100% sure but I thinking it responds when pathogens enter the body because the immune system is meant to protect your body from illness.
its bumped because it stores water for the camel
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.
Scientific reasoning requires following the scientific method.
1. You foremost make an observation about the universe.
2. Make a hypothesis as to why that phenomenon is the way it is.
3. Design an experiment to test your hypothesis. Hypotheses can be thought of as "predictions"
4. Finally draw a conclusion based on the results of your experiment. Was your hypothesis proven to be valid?
For more information on science see creation.com
