A man’s blood group is AB. What is the probability of the man giving birth to a child with blood group O? Posted on:
Which of the following human activities would help prevent endangered species from extinction? Posted on:
The absence of alimentary canal in the parasitic flatworm can be attributed to the fact that Posted on:
Rhizobium which lives in the root nodules of leguminous plants is an example of the association known as Posted on: