Customer Service Chat
Get quote & make Payment
Mass extinction, Biology
s Extinction -
Since beginning many species evolved and got extinct (in fact only 1 % is living).
Sometimes it occured suddenly at large scale, (most recently dinosaurs about 60 million years ago) the reason is still a mystry.
High concentration of irridium (rare on the earth) in a thin layer below surface soil (60 million years old) is present in meteorites.
This suggests that some comet or meteorites hit the earth around that time.
The energy equal to several thousand hydrogen bombs would have been the reason for mass extinction.
Alternate hypothesis is global cooling.
Posted Date: 10/8/2012 9:12:52 AM | Location : United States
Ask an Expert
Mass extinction, Assignment Help, Ask Question on Mass extinction, Get Answer, Expert's Help, Mass extinction Discussions
Write discussion on Mass extinction
Your posts are moderated
Write your message here..
Explain class mammalia in animal kingdom, Explain Class Mammalia in animal ...
Explain Class Mammalia in animal kingdom? Class Mammalia: Mammals are distinguished by their hair and their mammary glands. Mammary glands, after which this group of vertebrate
Endosperm, 1. What are the examples of helobial endosperm
1. What are the examples of helobial endosperm
Formation of the amino acids sequences of a protein, Q. How do nucleotides ...
Q. How do nucleotides of mRNA chains encode information for the formation of the amino acids sequences of a protein? There are only four types of nitrogen- containing bases tha
How can brain research improve the treatment of pain, How can brain researc...
How can brain research improve the treatment of pain? Despite recent advances in understanding how brain processes and responds to pain, experts say pain continues to be grossl
Define exocytosis , A cell frequently wants to secrete larger molecule...
A cell frequently wants to secrete larger molecules than can be accommodated through the transport systems dealt with in Topic E3. Exocytoses get to the movement of proteins out of
Determine instruments that are required for sterilizations, Determine the I...
Determine the Instruments that are Required For Sterilization? The word sterilization is derived from the Latin word 'Sterilic' meaning unable to produce offsprings. Sterilizat
Why the l enantionmer is more dominant, In the Miller-Urey experiment, amin...
In the Miller-Urey experiment, amino acids of bothe the L and D enantionmers. Why is it that the L enantionmer is more dominant in living things?
What is dyslipidaemia, What is Dyslipidaemia ? The results of epidemiol...
What is Dyslipidaemia ? The results of epidemiological studies, as well as trials with angiographic or clinical endpoints, confirm the importance of various lipid fractions in
Can you explain genetic code, Q What is genetic code? Genetic code is t...
Q What is genetic code? Genetic code is the key for the conversion of the DNA nucleotide sequences and thus the RNA nucleotide sequences into amino acids sequences that will co
U, uses of conductometry in biological experiments
uses of conductometry in biological experiments
Accounting Assignment Help
Economics Assignment Help
Finance Assignment Help
Statistics Assignment Help
Physics Assignment Help
Chemistry Assignment Help
Math Assignment Help
Biology Assignment Help
English Assignment Help
Management Assignment Help
Engineering Assignment Help
Programming Assignment Help
Computer Science Assignment Help
Why Us ?
~24x7 hrs Support
~Quality of Work
~Time on Delivery
~Privacy of Work
Human Resource Management
Literature Review Writing Help
Terms & Conditions
Copyright by ExpertsMind IT Educational Pvt. Ltd.