Which of the following is a difference between plant cells and animal cells?
a.
plant cells have a rigid structure, while animal cells have a more flexible structure.
b.
animal cells carry out photosynthesis; plant cells do not.
c.
animal cells undergo cell division; plant cells do not divide.
d.
in plant cells, dna is stored in the mitochondria; in animal cells, the dna is stored in the nucleus.

A.  

Plant cells have a rigid structure, while animal cells have a more flexible structure.

Explanation:

Plant cells have a cell wall, a large central vacuole, and plastids such as chloroplasts. The cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell, providing structural support and protection.

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.