#Question id: 11908
#Unit 8. Inheritance Biology
What is the phenotype of a person who has XXXY sex chromosomes?
#Question id: 11909
#Unit 8. Inheritance Biology
In the birds, butterflies and some reptiles, sex is still chromosomal, but the male that possesses two identical sex chromosome while the female has two different sex chromosome, in this case which one is determining sex?
#Question id: 11910
#Unit 10. Ecological Principles
During succession species that colonize in early seral stages tend to have different life-history characteristics than those that colonize in later seral stages ;
A) Early seral stage in succession
B) Late seral stage in succession
i) Good seed dispersal ability
ii) Lower plant efficiency in low light
iii) Seed dispersal by animal
iv) Slower the resource acquisition
v) Found large biomass
vi) Seed longevity is long type
Which of the following is the correct prediction about early and the late successional seral stage?
#Question id: 11911
#Unit 10. Ecological Principles
Michael Moulton and Stuart Pimm (1986) showed how the success of birds introduced to Tahiti or the Hawaiian Islands was dependent on the morphology of the species already present , find out the correct graph represents, morphological differences and the probability of invasion success ;
#Question id: 11912
#Unit 10. Ecological Principles
The success of birds introduced to Tahiti or the Hawaiian Islands was dependent on the morphology of the species already present. If there was a small morphological difference in bill length between the resident and introduced species, then
#Question id: 11913
#Unit 10. Ecological Principles
During the rate of succession several factors would be observe at the pioneer as well as climax community;
| STAGES | CHARACTER |
| A) Pioneer community | i) Biotic Potential low |
| B) Climax community | ii) Root to Shoot ratio is high |
| iii) Productivity per biomass is low | |
| iv) Net primary productivity is high | |
| v) P/R ratio is greater than 1 | |
| vi) Nutrient cycling is closed | |
| vii) Regeneration ability is more | |
| viii) Resistance ability is more |
Match the community stages with its given characters;