The children in a middle school classroom are all exposed to chicken pox one week. among these students are john, who had chicken pox when he was much younger, and sara, who has never had chicken pox. which student do you expect would be less likely to become ill with chicken pox following this exposure and why?

sara: she has naturally acquired passive immunity to chicken pox from exposure to other students.

john: the pathogens that cause chicken pox will no longer be able to enter his body.

sara: since she has not suffered from chicken pox, her immune system is probably stronger than john's.

john: he has naturally acquired active immunity to chicken pox from his previous exposure

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

events in order:

1.       vishnu schist

2. zoroaster granite

3. bass limestone

4. hakatar   shale

5. igneous intrusion

6. shinumo quartzite

7. dox sandstone

8. tapeats limestone

9. bright angel shale

10. muav limestone

11. temple butte limestone

12. redwall limestone  

nonconformity

answer: the unkar group shows angular unconformity because the layers are turned at angle.

unconformity

answer: specifically the angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled. an angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled.

disconformity

answer: the disconformities aremarked irregular lines between the sedimentaryrocks layers.