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 ;

TLS Online TPP Program

#Question id: 10592

#Unit 10. Ecological Principles

Given below are the steps to assess the population size of grasshoppers in a given area, the size of the population is estimated as follows

Which of the following correct combination of parameter?

TLS Online TPP Program

#Question id: 20975

#Unit 12. Applied Biology

In glucose electrode, glucose oxidase has been coupled to an electrode by which of the following materials?

TLS Online TPP Program

#Question id: 11418

#Unit 10. Ecological Principles

Use the following diagram of five islands formed at around the same time near a particular mainland, as well as MacArthur and Wilson's island equilibrium model principles

Which island would likely have the lowest extinction rate?

TLS Online TPP Program

#Question id: 31383

#Unit 7. System Physiology – Animal

The metabolic rate is least affected by an increase in the plasma level of:

TLS Online TPP Program

#Question id: 5524

#Unit 5. Developmental Biology

Interaction of the optic stalk with ectoderm makes the development of the