Vascular Cambium

The meristematic layer that is responsible for cutting off vascular tissues – xylem and pholem – is called vascular cambium

young stem it is present in patches as a single layer between the xylem and phloem. Later it forms a complete ring

TLS Online TPP Program

#Id: 8242

#XL - T Zoology

TLS Online TPP Program

#Id: 8243

#XL - T Zoology

Random dispersions are not common in nature, largely because abiotic conditions, resources, and interactions with other species are not randomly distributed

TLS Online TPP Program

#Id: 8244

#XL - T Zoology

Average finite rate of increase.

TLS Online TPP Program

#Id: 8245

#XL - T Zoology

Time to reach a certain population

TLS Online TPP Program

#Id: 8417

#XL - T Zoology

Many large mammals, including humans and K selected individuals – Type I curve 

Many birds, small mammals, reptiles and some annual plants – Type II curve 

Many fish and marine invertebrates, r selected individuals - Type III curve

TLS Online TPP Program

#Id: 8418

#XL - T Zoology

Survivorship curves generated from static life tables may be easier to construct but they ignore environmental variation and may be slightly less accurate than survivorship curves from cohort life tables.