Posted by Khushi @ 5 days ago
Posted by Shaista Sultan 1 month, 3 weeks ago
In binomial system of nomenclature, the generic name of a species always starts with a capital letter whereas the specific name starts with a small letter. Therefore, the correct scientific name of Mango is Mangifera indica.
Posted by Kumar Shivam 3 months, 4 weeks ago
Posted by Malu Maluzzz 4 months ago
Example- 2, 4-D is widely used to kill dicotyledonous weeds.
Posted by Meena Khandelwal 5 months, 1 week ago
Posted by Stephen Ruhul 5 months, 1 week ago
The presence or absence of pigments is the main basis of classification of algae.
Chlorophyceae: Chlorophyll a and b are present in them and impart green colour. Chlorophyceae are also called ‘blue-green algae’.
Phaeophyceae: Chlorophyll a and c and fuxoxanthin are present. Fucoxanthin imparts brown colour. Phaeophyceae are also called ‘brown algae’.
Rhodophyceae: Chlorophyll a and d and phycoerythrin are present. Phycoerythrin imparts red colour. Rhodophyceae are also called ‘red algae’.
Posted by Shabeeb Shabee 7 months, 2 weeks ago
Two Kingdom Classification
Five Kingdom Classification
(Robert H. Whittaker 1969):
This is the most accepted system of classification. The five kingdoms are as follows:
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