I-cell disease

• almost all of the hydrolytic enzymes are missing from the lysosomes of many cell types.

• mis-sorting has been traced to a defective or missing GlcNAc phosphotransferase.

TLS Online TPP Program

#Id: 8004

#XL - T Zoology

Major component of ecological niche

1. Space Habitat

2. Eating habit

3. Environmental variant

TLS Online TPP Program

#Id: 8005

#XL - T Zoology

The Hutchinsonian niche is an "n-dimensional hypervolume", where the dimensions are environmental conditions and resources

                                                                                    

                                                                                              

TLS Online TPP Program

#Id: 8006

#XL - T Zoology

The differentiation of niches that enables similar species to coexist in a community is called resource partitioning.

TLS Online TPP Program

#Id: 8009

#XL - T Zoology

          Richard hypothesis 

            

TLS Online TPP Program

#Id: 8010

#XL - T Zoology

Resource partitioning promote coexist  of ecologically similar species

TLS Online TPP Program

#Id: 8011

#XL - T Zoology

                                   Richard hypothesis 

d/w = resource separation ratio.

d/w < 1, species cannot coexist;

1 < d/w < 3, there will be some competition between species

d/w > 3, species coexist harmoniously