Explain asteroid impacts, Biology

Asteroid impacts: The hypothesis which links certain mass extinction events with the impact of the comet or asteroid, most particularly the mass extinction 65 million years which became the reason of disappearance of dinosaurs and many other reptilian groups. Asteroid impacts early in the history of earth also contributed to the formation of atmosphere and oceans. 

Posted Date: 8/1/2012 5:12:16 AM | Location : United States







Related Discussions:- Explain asteroid impacts, Assignment Help, Ask Question on Explain asteroid impacts, Get Answer, Expert's Help, Explain asteroid impacts Discussions

Write discussion on Explain asteroid impacts
Your posts are moderated
Related Questions
Determine the term - essential element It becomes difficult to meet all the conditions so as to establish essentiality. This is particularly so for the elements that are requir

Enzyme  glutamate oxaloacetate transaminase catalyzes  the  reaction between glutamate and oxaloacetate with the formation of a-ketoglutarate and aspartate due to transfer  of one

Nucleic Acids Friedrich Miescher  (1868) discovered the presence  of these compound  in protoplasm ,but Altman (1889) introduced the term Nucleic acid. These  acids are the lar

Heliozoans - Protozoan Heliozoans are spherical protozoan that occur in the sea or in still bodies of fresh water. They are mainly located in the bottom debris. Fine needle li

You have to do counselling of a diabetic patient and the family members when you are working in a diabetic clinic or community setting in health center. To be an effective counsell

If carbon 1 is the carbonyl group of a 6-carbon aldose (aldohexose), which carbon determines if the sugar is a D- or L- stereoisomer? Select one: a. 1 b. 2 c. 3 d. 4

From the following, name the type of mimicry by which a palatable, acceptable insect mimics an unfavorable, noxious insec for protection. a) Batesian mimicry (pron: BATE-see-an

Define the advatages of Potassium The gross impact of these effects on crop production is manifested  in several ways. Perhaps the first visible indication of a potassium defic

Using Autonomous Transactions   The transaction is a sequence of SQL statements that does a logical unit of work. Frequently, one transaction starts the other. In several appl

Explain the Autonomic neuropathy It leads to dry skin due to decreased sweating. Dryness of the skin leads to cracking which makes entry of infection in to the deeper plane eas