Permanentt tissue

A) Simple Permanent Tissue

i) Parenchyma Cells

ii) Collenchyma Cells

iii) Sclerenchyma Cells

B) Complex permanent tissue

i) Xylem ( Hydrome)

ii) Phloem

TLS Online TPP Program

#Id: 9197

#XL - T Zoology

Stabilized natural selection

Favor intermediate phenotype but eliminate lower and higher-grade phenotype

It introduced homogeneity in the population

Exp - clutch size of birds that lay too many or too few eggs per nest have lower fitness values than do those that lay an intermediate number of eggs

TLS Online TPP Program

#Id: 8235

#XL - T Zoology

Clustered dispersions

Social groups

Clustered resources

Offspring that remain close to their parents.

TLS Online TPP Program

#Id: 9283

#XL - Q Biochemistry

Three factors are important in maintaining low O2 concentrations in nodules. 

First, entry of O2 into the nodule is controlled by a variable‐permeability barrier in the nodule parenchyma

TLS Online TPP Program

#Id: 9266

#XL - S Microbiology

N2 constitutes about 80% of the earth’s atmosphere, but the stability of its triple bond renders it inert and metabolically inaccessible to most organisms.

TLS Online TPP Program

#Id: 356

#XL - R Botany

The reaction catalyzed by citrate synthase is essentially a Claisen condensation, involving a thioester (acetyl-CoA) and a ketone (oxaloacetate)