Interactions with external factors which influence or cause competitiorr include
A. Selective pressure or disturbance of ecological equilibria by animals and man
B. Disturbance of environment which provides bare soil or seedling niches
C. Unusual soil conditions such as toxic solute content, heavy metals, excess calcium carbonate etc.
D. All of the above
Answer: Option D
This Question Belongs to Biology GK Chapter Wise >> Plant Anatomy And Physiology
A. Cinnamomum - Amoora association
B. Bischofia - Dillenia association
C. Shorea - Lagerstroemia association
D. Mesua - Michelia association
Which of the following react with haemoglobin, forming methemoglobin which will not take up oxygen?
A. Nitrates
B. Nitrites
C. Carbides
D. Oxides
Internally, hydathode shows a group of loosely arranged parenchymatous cells called as
A. Epiderm
B. Epithelium
C. Ampithecium
D. Epithem
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