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

Author Question: How has fossil diversity changed over time? Why do diversity trends differ among taxonomic levels? ... (Read 111 times)

newbem

  • Hero Member
  • *****
  • Posts: 579
on: Jul 14, 2018
How has fossil diversity changed over time? Why do diversity trends differ among taxonomic levels?
 
  What will be an ideal response?

Question 2

The ________ connects Afghanistan to China.
 
  A) Indus River
  B) Wakhan Corridor
  C) Aral Sea
  D) Opium Superhighway


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

adf223

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jul 14, 2018
Answer to Question 1

There has been a general increase in diversity, punctuated by more rapid intervals of diversity decline and recovery. Diversity trends depend on taxonomic levels because for a given volume of sedimentary rock, it is much more likely to find one fossil of a higher taxonomic group (i.e., family) than it is to find one fossil of a lower taxonomic group (i.e., species). Thus, at the lower taxonomic levels, the presence or absence of the taxonomic group is more likely to be affected by the volume of rock available for study. Since the availability of sedimentary rocks changes through time, the time dependence of diversity is affected by the taxonomic level in question.

Answer to Question 2

B


newbem

  • Member
  • Posts: 579
Reply 2 on: Jul 14, 2018
Gracias!

abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Blood Glucose Levels Blood Glucose Levels
Linguistic Diversity Linguistic Diversity
The four levels of protein structure The four levels of protein structure
Evolution and Natural selection shapes organisms and diversity Evolution and Natural selection shapes organisms and diversity
Disitive Time For Nuts Disitive Time For Nuts
A crowd in Iceland reflects its narrow range of genetic diversity A crowd in Iceland reflects its narrow range of genetic diversity
Video: Inflammatory response Animation

For a complete list of videos, visit our video library