r-selected species

High rate of per capita population growth

poor  competitive ability

Grows quickly 

age early, 

devoting much energy to producing  large number of progeny 

Small in size, and individuals do not live long. 

Random matting

TLS Online TPP Program

#Id: 10702

#XL - R Botany

The  stele  is  the  central  part  of  the root  or  stem  containing  the  tissues  derived  from  the  Procambium.  These  include  vascular  tissue.

The  main  function  of  the  stele  is  to  provide structural  support  to  the  plant.

TLS Online TPP Program

#Id: 10113

#XL - T Zoology

TLS Online TPP Program

#Id: 7035

#XL - T Zoology

Neo-Lamarckism - August Weismann cut off the tails of mice for many generations and showed that this mutilation had no effect on the tail length of their descendants

TLS Online TPP Program

#Id: 9795

#XL - R Botany

The amount of light is referred to as the fluence, which is defined as the total number of photons impinging on a unit surface area. Total fluence = fluence rate × the length of time

TLS Online TPP Program

#Id: 10689

#XL - R Botany

Collenchyma cells

Collenchyma cells are generally elongated cells that have thicker primary walls than parenchyma cells,

Collenchyma cells provide flexible support without restraining growth