Which of the following best explains why the number of organisms at each level decreases while moving up the energy pyramid?
A.
The animals at higher levels are more competitive, so fewer animals survive.
B.
The animals at each level use energy, so only a small amount of their energy is available to the next level.
C.
The animals at higher levels move more than animals at lower levels, so they require more energy.
D.
The animals at each level have more predators, so they produce more offspring.

B. The animals at each level use energy, so only a small amount of their energy is available to the next level.

Explanation:

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.