If '+' sign is assigned to beneficial interaction, '–' sign to detrimental and '0' sign to neutral interaction, then the population interaction represented by '+' '–' refers to
Parasitism + , – Mutualism + , + Amensalism 0, – Commensalism +, 0
Which of the following is correct for r-selected species?
The primary producers of the deep-sea hydrothermal vent ecosystem are
How many hot spots of biodiversity in the world have been identified till date by Norman Myers?
Which kind of therapy was given in 1990 to a four-year-old girl with adenosine deaminase (ADA) deficiency?
Which of the following restriction enzymes produces blunt ends?
