Why will most species go extinct before being described?

Textbook:
Bio geography. Fourth Edition. 2010. Lomolino, Riddle,Whittaker, and Brown. Sinauer Associates, Inc. Sunderland, Massachusetts.

Use only references that I gave you do not use other references
Hello
please complete the following tasks:
1. Read Chapter 16 from Bio geography. Fourth Edition. 2010. Lomolino, Riddle,Whittaker, and Brown. Sinauer Associates, Inc. Sunderland, Massachusetts
2. Review the supplemental PowerPoint file (Ch016.ppt) I will send it for you.
3. Answer the Discussion question in one bar graph.
Why will most species go extinct before being described? What is a solution?
Use only references that I gave you do not use other references
On the same page:
please complete the following tasks:
1. Read Chapter 17 from Bio geography. Fourth Edition. 2010. Lomolino, Riddle,Whittaker, and Brown. Sinauer Associates, Inc. Sunderland, Massachusetts
2. Please answer the following question by creating a thread in the 16: Discussion Board. You can access the discussion boards by clicking the link above or by clicking on the Discussion Board tab to the left.
3. Answer the Discussion question in tow bar graphS
Look at page 763 in the textbook. Which of these topics do you expect to be important research directions and why?
Textbook:
Bio geography. Fourth Edition. 2010. Lomolino, Riddle,Whittaker, and Brown. Sinauer Associates, Inc. Sunderland, Massachusetts