Mutualism is a long lasting, mutually beneficial interaction among organisms. Which of the following relationships best reflects mutualism? 1) A starfish provides a safe place for sea worms to reside; the starfish receives nothing in return.

2)Reef corals build a hard protective skeleton that algae live in; the algae provide energy to the coral through photosynthesis.

3)Butterflylarvae lay their eggs on jaguars and consume blood and nutrients from the jaguars.
4) Galapagos tortoises eat all the branches of cactus plants; the plant is harmed and sometimes dies.

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.