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 45 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
Gracias!

frankwu0507

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Large numbers of plant species can flower at once in this grassland in Kinsella, Alberta. Large numbers of plant species can flower at once in this grassland in Kinsella, Alberta.
Shark - These species are all at risk of extinction Shark - These species are all at risk of extinction
The Dugong is an endangered species; the largest remaining population is found in Australian waters The Dugong is an endangered species; the largest remaining population is found in Australian waters
Fossil of the extinct Ergilemys insolitus Fossil of the extinct Ergilemys insolitus
Any number of crossovers gives 50 percent recombinants Any number of crossovers gives 50 percent recombinants
The Taung Child, the first of the australopithecines to be discovered, is the type specimen for Aust The Taung Child, the first of the australopithecines to be discovered, is the type specimen for Aust
Video: Metaphase I Animation

For a complete list of videos, visit our video library