Explain how do plants take in oxygen?
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What are Cotyledons?
Explain the Defensive mechanism in plants ?
what is the theory of evolution?
Reserve food materials in pheophyceae?
Explain importance of solanaceae?
What is the role of bark in a plant?
what are plant flavanoids?
Explain distinction between plants and animals ?
Can you determine the age of a tree without cutting it down?
what is hydroponics?
What is the difference between DNA and RNA?
Endodermis?