Pointers

TLS Online TPP Program

#Id: 10682

Anomalous secondary growth
Several dicotyledons show secondary growth that is different from normal secondary growth. The deviating methods of secondary thickening are called abnormal or anomalous secondary growth.
e.g., Bougainvillea (Dicot)

#XL - R Botany #Plant anatomy #Part B Pointers

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TLS Online TPP Program

#Id: 10673

#XL - R Botany

Activity of the cambial ring

Cambial ring becomes active and begins to cut off new cells, these cut off cells towards pith, mature into secondary xylem and the cells cut off towards periphery mature into secondary phloem

TLS Online TPP Program

#Id: 8010

#XL - T Zoology

Resource partitioning promote coexist of ecologically similar species

TLS Online TPP Program

#Id: 4699

#XL - T Zoology

Altruism in social insects(haplodiploidy) Workers, rarely reproduce themselves but instead help one reproductive female (the queen) to raise offspring, a phenomenon called eusociality.

TLS Online TPP Program

#Id: 10697

#XL - R Botany

Monocot stem

Epidermis ;

Consist of Parenchyma cells and covered with cuticle.

Hypodermis ;

Cells of Hypodermis are Sclerenchymatous

Vascular bundles ;

They lie Scattered in the Ground tissue.

Each Vascular Bundle is surrounded by 2 or 3 layered Sclerenchymatous sheath called as Bundle sheath.

Conjoint, Collateral, Closed and Endarch