A biology student estimates a population of snails in a local field using randomly selected eight 1.0 m2 quadrats in a 10 m x 10 m site. The numbers of slugs in each
quadrat were 3, 9, 4, 2, 3, 7, 5 and 1.
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a) Estimate the population density of slugs in this study site. (2 marks)
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b) Estimate the total population of slugs in this study site. (3 marks)
c) What assumptions do you make when using the quadrat sampling technique?
State at least two (2) assumptions and explain why they are important. (4 marks)

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.

b a mature ovary of a plant.