« previous next »

Author Question: What is the estimated number of extant species on Earth? A) 1,000 to 50,000 B) 5 (Read 952 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
on: Nov 3, 2013
What is the estimated number of extant species on Earth?
A) 1,000 to 50,000
B) 50,000 to 150,000
C) 500,000 to 1,000,000
D) 10,000,000 to 100,000,000
E) 5 billion to 10 billion


plus1

  • Hero Member
  • *****
  • Posts: 676
Reply #1 on: Nov 3, 2013
I recall doing this last year, it's D, bye bye!


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

penza

  • Hero Member
  • *****
  • Posts: 1,022
Reply #2 on: Sep 16, 2014
Thanks so much!


« previous next »
 

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

A number of tree species can be interconnected by mycorrhizal fungi in the forests of British Columb A number of tree species can be interconnected by mycorrhizal fungi in the forests of British Columb
The Sun as it appears from the surface of the Earth at sunrise. The Sun as it appears from the surface of the Earth at sunrise.
Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f
(a) The low-resolution signal has the same number of pulses as the engine has cylinders. (b) A ... (a) The low-resolution signal has the same number of pulses as the engine has cylinders. (b) A ...
The Location and Number of Food- and Beverage-Processing Facilities The Location and Number of Food- and Beverage-Processing Facilities
How mitosis maintains the chromosome number. How mitosis maintains the chromosome number.
Video: Electrical changes in the heart

For a complete list of videos, visit our video library