MITOSIS POWER POINT PRESENTATION

Mitosis from RAKHIRAJENDRANPILLAI

MITOSIS VIDEO

FIVE KINGDOM CLASSIFICATION

FIVE KINGDOM CLASSIFICATION

   In 1969 American ecologist Robert H. Whittaker proposed five kingdom classification with kingdoms Monera, Protesta, Fungi, Plantae and Animalia.

FIVE KINGDOM CLASSIFICATION MONERA                                               prokariotes-bacteria,cyanobacteria, mycoplasmas They have a simple organization with no membrane bound nucleus.

• PROTISTA                                                                                           unicellular or eukaryotes-amoeba.

Organisms with a definite nucleus.

• FUNGI                            

 multicellular non motile chemoheterotrophs-mushrooms.

• PLANTAE                                              

 multicellular eukaryotic organisms-plants. They are autotrophs with photosynthetic pigments in chloroplast.

• ANIMALIA                                            

multicellular motile chemo heterotrophs having cell lacking cell walls-animals.

• KINGDOM MONERA

• KINGDOM PROTISTA

•  KINGDOM FUNGI

•  KINGDOM PLANTAE

•  KINGDOM ANIMALIA

Bio fertilizers

BIO FERTILIZERS

                         

A bio fertilizer is a substance which contains living microorganisms which, when applied to plant surfaces, or soil, colonizes the interior of the plant and promotes growth by increasing the supply or availability of primary nutrients to the host plant. Microorganisms convert complex organic material in simple compounds, so that plants are easily taken up.                                                                                                                   

 Bio-fertilizers add nutrients through the natural processes of nitrogen fixation, solubilizing phosphorus, and stimulating plant growth through the synthesis of growth-promoting substances. Through the use of bio-fertilizers, healthy plants can be grown, while enhancing the sustainability and the health of the soil. Bio-fertilizers do not contain any chemicals which are harmful to the living soil.  Microorganisms convert complex organic material in simple compounds, so that plants are easily taken up.  Microorganism function is in long duration, causing improvement of the soil fertility. It maintains the natural habitat of the soil. It increases crop yield, replaces chemicals and stimulates plant growth. It can also provide protection against drought and some soil-borne diseases. Bio-fertilizers are cost-effective relative to chemical fertilizers. They have lower manufacturing costs, especially regarding nitrogen and phosphorus use.

Some Bio-fertilizers are   

•         Azolla
•         Rhizobium
•                Cyanobacteria
•                 Mycoriza
•                 Azotobacter