3 or 4 cGMP molecules must bind to each channel in order to open it; because of this cooperative allosteric interaction, channel opening is very sensitive to small changes in cGMP levels.

#Id: 8004

#XL - T Zoology

Major component of ecological niche

1. Space Habitat

2. Eating habit

3. Environmental variant

#Id: 8005

#XL - T Zoology

                                                                                              

#Id: 8006

#XL - T Zoology

#Id: 8009

#XL - T Zoology

          Richard hypothesis 

#Id: 8010

#XL - T Zoology

Resource partitioning promote coexist  of ecologically similar species

#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