Customer Service Chat
Get quote & make Payment
Theory of biogenesis, PL-SQL Programming
THEORY OF BIOGENESIS
This theory explains that the existing living organisms originated from pre-existing living beings not from non living entities.
This concept of origin of life was supported by various evolutionists on the basis of their experiments.
All such evolutionists have rejected the concept of autogenesis or abiogenesis.
(1626-98) conducted an experiment in which he cooked some meat so that no organisms were left alive and placed them in three jars; one jar left uncovered, one jar was covered with muslin cloth and the third jar covered with parchment paper.
After a week, he observed that maggots appeared only in that jar which was uncovered not in those jars that were covered by either muslin cloth or parchment paper.
He concluded that flies arise from the eggs laid down by parent flies in the uncovered jar. On the basis of this experiment
Redi had discarded the concept of spontaneous generation.
(1729-99) prepared a nutritive broth of vegetables and flesh and placed it in flasks and sealed the necks of the flasks just to check the entry of air. He boiled the broth for four hours and left these flasks as such for many days.
e observed that no living organisms appeared in broth of flasks and hence he concluded that
microorganisms are formed not spontaneously, but from those already present in the air.
(1822-95) refused the concept of spontaneous generation on the basis of an experiment.
He has taken a mixture of sugar and yeast syrup and put this mixture into
The contents of the flask were boiled till steam passed out the tube and then they were cooled.
did not found any change in the content of the flaks after a considerable longer period of time and no growth of organisms was observed.
He concluded his experiment with an inference that when the air entered the flask, all air-born particles got stuck at the bend of the tube and only the pure air reached the syrup that remained sterile.
He broke the neck of the flask.
This made a direct contact of syrup with the air and a thick growth of microorganisms appeared in the flask.
By this experiment and result,
Pasteur conclusively disproved the idea of spontaneous generation.
Posted Date: 10/8/2012 8:38:24 AM | Location : United States
Ask an Expert
Theory of biogenesis, Assignment Help, Ask Question on Theory of biogenesis, Get Answer, Expert's Help, Theory of biogenesis Discussions
Write discussion on Theory of biogenesis
Your posts are moderated
Write your message here..
Use of table expressions - expressing constraint conditions, Use of Table E...
Use of Table Expressions - Expressing Constraint Conditions With the exception of key constraints, the examples in the theory book all explicitly reference at least one relvar
Example of wrap operator - sql, Example of WRAP Operator - SQL The eff...
Example of WRAP Operator - SQL The effect of Example can be obtained in SQL but note that one needs to write down not only the names of the columns being wrapped but also the
Need fullcalendar modifications, Project Description: I am looking to ch...
Project Description: I am looking to change FullCalendar to add/delete sql server data when events are removed or dropped from Calendar. Events should only be included by dra
%isopen - explicit cursor attributes, %ISOPEN The %ISOPEN yields TRUE ...
%ISOPEN The %ISOPEN yields TRUE if its cursor or cursor variable is open; or else, the %ISOPEN yields FALSE. In the illustration, you use the %ISOPEN to select an action:
Triggers, At times, customers make mistakes in submitting their orders and ...
At times, customers make mistakes in submitting their orders and call to cancel the order. Brewbean’s wants to create a trigger that automatically updates the stock level of all pr
Managing cursors, Managing Cursors The PL/SQL uses 2 types of cursors: ...
Managing Cursors The PL/SQL uses 2 types of cursors: implicit and explicit. The PL/SQL declares a cursor implicitly for all the SQL data manipulation statements, including th
Renaming columns - sql, Renaming Columns - SQL SQL has no direct count...
Renaming Columns - SQL SQL has no direct counterpart of RENAME. To derive the table on the right in Figure 4.4 from the table on the left, Tutorial D has IS_CALLED RENAME ( St
Implicit cursor attributes, Implicit Cursor Attributes The Implicit cur...
Implicit Cursor Attributes The Implicit cursor attributes returns the information about the execution of an INSERT, DELETE, UPDATE, or SELECT INTO statement. The cursor attribu
Manipulating local collections - pl/sql, Manipulating Local Collections ...
Manipulating Local Collections Within PL/SQL, to manipulate the local collection, by using the TABLE and CAST operators . The operands of CAST are a collection declared locally
Parameter and keyword description - procedures, Parameter and Keyword Descr...
Parameter and Keyword Description: procedure_name The user-defined procedure is declared by this construct. parameter_name: This identifies the formal parameter t
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.