This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Explain why it is difficult to give an accurate count of the number of species that go extinct each ... (Read 42 times)

Evvie72

  • Hero Member
  • *****
  • Posts: 519
on: Jul 14, 2018
Explain why it is difficult to give an accurate count of the number of species that go extinct each year.
 
  What will be an ideal response?

Question 2

What is a catalyst?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fwbard

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 14, 2018
Answer to Question 1

This is difficult because many species go extinct every year without us ever knowing they existed. Furthermore, extrapolating from small scales to large scales can introduce inaccuracies, and estimating species loss from extinction rate and number of species is inaccurate because neither extinction rate nor the number of species is well constrained.

Answer to Question 2

A catalyst is a molecule (or substance) that speeds up a reaction without itself being consumed.


Evvie72

  • Member
  • Posts: 519
Reply 2 on: Jul 14, 2018
Wow, this really help

Sarahjh

  • Member
  • Posts: 370
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Different gene orders give different double recombinants Different gene orders give different double recombinants
Relationship between the number of CAG repeats in a gene and the age of onset of Huntington disease. Relationship between the number of CAG repeats in a gene and the age of onset of Huntington disease.
Determination of the Number of Polygenes (n) Determination of the Number of Polygenes (n)
The number of phenotypic classes in the F2 generation increases as the number of genes controlling t The number of phenotypic classes in the F2 generation increases as the number of genes controlling t
Phylogenetic shadowing of primate species Phylogenetic shadowing of primate species
Video: What is an ecosystem?

For a complete list of videos, visit our video library