Short Answer TypeBiotechnologists refer to Agrobacterium tumifaciens as a natural genetic engineer of plants. Give reasons to support the statement.
Write a difference between net primary productivity and gross productivity.
| Gross primary productivity | Net primary productivity |
| It is the amount of organic matter synthesised by producers per unit area in unit time. | It is the amount of organic matter stored by producers per unit area in unit time. |
| It refers to the total productivity including energy utilised for respiration by the producers. | It refers to the net productivity that is converted to organic matter excluding the energy utilised for respiration by the producers . |
Name the enzyme produced by Streptococcus bacterium. Explain its importance in medical sciences.
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