A. Reaction wood formation
B. Absence of secondary growth
C. Absence of tylosis
D. All of these
Correct Answer: Reaction wood formation ✔
Last Updated: May 22, 2024
Related MCQs
- According to Mc Dougal, the parasitism caused due to fungi and bacteria represent a symbiotic relationship which is:
- The air density is maximum:
- The relationship between a climber and the host corresponds to:
- Flag trees’ are formed due to:
- Plants growing on burnt soil are called:
- The lichens show a mutualistic relationship originating from:
- The advantage/s of fire:
- The seeds of Rhus can endure a temperature as high as:
- Odum did not recognise the following relationship as a positive interaction:
- The zone of soil showing microbial activity around the roots of higher plants is called:
- The term symbiosis was proposed by:
- The device or structure where plants are grown in a controlled environment:
- When one population is harmed and the other remains unaffected the relationship is called:
- Plants growing in oxygen deficient soils possess:
- The relationship between the alga Cladophora and the snail shell on which it grows corresponds to:
- The proto co-operation is also called:
- As a result of fire, there is destruction of the following components of soil:
- The following relationship does not correspond to mutualism:
- The serotinous cones show:
- When cane plants grown in the forest, they scamble over other vegetation and this corresponds to:
- As an adaptation to fire, some plants produce lignotubres which are:
- The interspecific competition is also called:
- The relationship between the alga Microcystis and the surrounding fauna corresponds to:
- The most interfering biotic components are:
- Those chemicals, which are released by one organism but they destroy the other organism are precisely called:
- Which of the following plants does not show predation?
- Those chemicals which are produced by plants and affect other plants are broadly called:
- The type of relationship where weaker partner is benefitted and stronger remains unaffected is sometime called:
- Mark the hyperparasite:
- Useful adaptation of hydrophytes is:
- The ecologically fixed and genetically irreversed component of species is called:
- More than 70% of world’s freshwater is contained in:
- Study of relationship between communities and environment is called:
- Possibilities of presence of coal in a particular area can be guessed by the study of:
- MAB stands for:
- In which region the juicy fruits are found?
- During adverse season, thermophytes survive by:
- Which one has feebly developed root system and numerous air cavities?
- Reduction of mechanical and vascular tissue and poor roots are found in:
- Plants die from prolonged water logging because:
- Xerophytes are generally found in:
- Relative to shoots, the roots can be very massive in plants of:
- Endemic plants are those which grow in:
- At which latitude, heat grain through insolation approximately equals heat loss through terrestrial radiation?
- Plants of salty seashore wetlands are called:
- Unutilized place for the growth of flora (vegetation) is:
- The average amount of CO2 in atmosphere is:
- Stratification is most complex in:
- Eichhornia cressipes is a:
- Mycorrhiza is the phenomenon of:
- Which of the following does not have stomata?