Mechanical barriers provide a first line of defence against insect pests and pathogens, these mechanical barriers developed by plants;

COLUMN A	COLUMN B
A. Thorns	i) It can be found on the stem and petioles of roses and are formed by the epidermis
B. Spines	ii) Found on a lemon tree (Citrus sp.) are modified branches, as can be seen by their position in the axil of a leaf
C. Prickles	iii) Found on shoot and leaves of tomato (Solanum lycopersicum) are derived from epidermal cells
D. Trichomes	iv) which are characteristic of cacti (Opuntia spp.) in the New World, are modified leaves

Match correctly following combination of barrier developed by plants ;

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#Question id: 18386

#SCPH28 | Zoology

Biomagnification occurs mainly because of the following reasons

I. compounds are taken up from the environment and accumulated in the lipid deposits of body

II. organisms are consumed by other organisms in a non- sequential manner constituting the food chain

Which of the above statements are incorrect?

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#Question id: 18387

#SCPH01 Biochemistry

Structural features that make these compounds resistant to microbial degradation include

1. substitution of H by other groups

2. heterocyclic compounds

3. branched linear chains

Which of the above are correct?

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#Question id: 18387

#SCPH05 I Biotechnology

Structural features that make these compounds resistant to microbial degradation include

1. substitution of H by other groups

2. heterocyclic compounds

3. branched linear chains

Which of the above are correct?

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#Question id: 18387

#SCPH06 I Botany

Structural features that make these compounds resistant to microbial degradation include

1. substitution of H by other groups

2. heterocyclic compounds

3. branched linear chains

Which of the above are correct?

TLS Online TPP Program

#Question id: 18387

#SCPH28 | Zoology

Structural features that make these compounds resistant to microbial degradation include

1. substitution of H by other groups

2. heterocyclic compounds

3. branched linear chains

Which of the above are correct?

TLS Online TPP Program

#Question id: 18388

#SCPH01 Biochemistry

Remediation of Xenobiotics are done because they cause various hazards