About of all species on earth have become extinct.

99%

Explanation:

So, about 99% of all organisms that have ever existed on this planet are extinct today. While that number may sound startling, the reason is that, well, life on Earth has existed for about three and a half billion years, so things are going to change over time. A way to remember how humans have influenced biodiversity laws which can actually lead over time to extinction, the complete removal of the species on the planet, is this mnemonic device, HIPPOC. This stands for habitat alteration, invasive species, pollution, population growth meaning human population growth, overexploitation, and climate change.

the endocrine system secretes hormones into blood and other body fluids. these chemicals are important for metabolism, growth, water and mineral balance, and the response to stress. hormones provide feedback to the brain to affect neural processing. reproductive hormones affect the development of the nervous system.

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.