Competition is best defined as a process in which the fitness of one species (measured in terms of its $' r '$ the intrinsic rate of increase) is significantly
Lower in presence of another superior species
Competition is best defined as a process in which the fitness of one species (measured in terms of its $' r '$ the intrinsic rate of increase) is significantly
Lower in presence of another superior species
- A
Lower in presence of another superior species
- B
Higher in presence of another superior species
- C
Equal in presence of another superior species
- D
Equal in presence of their own species
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A relationship in which a sea anemone attached to shall of the hermit crab is called
In figs pollination done only by..............., not by any another.
In figs pollination done only by..............., not by any another.
Stopage of reproduction in an organism by creating hurdle in its biology or physiology or its distruction by use of another organism is known as
Stopage of reproduction in an organism by creating hurdle in its biology or physiology or its distruction by use of another organism is known as
- [AIPMT 1996]
Which of the following is an example of a defence used by plants against herbivores?
$I.$ Production of caffeine, tannin quinine
$II.$ More production of non-woody tissues
$III.$ Productions of hairs, thorns, spines
$IV.$ Production of hormone-like chemicals that interfere with insect metamorphosis
Select the correct pair
Which of the following is an example of a defence used by plants against herbivores?
$I.$ Production of caffeine, tannin quinine
$II.$ More production of non-woody tissues
$III.$ Productions of hairs, thorns, spines
$IV.$ Production of hormone-like chemicals that interfere with insect metamorphosis
Select the correct pair
In an aquarium two herbivorous species of fish are living together and feeding on phytoplanktons. As per the Gause’s Principle, one of the species is to be eliminated in due course of time, but both are surviving well in the aquarium. Give possible reasons.
In an aquarium two herbivorous species of fish are living together and feeding on phytoplanktons. As per the Gause’s Principle, one of the species is to be eliminated in due course of time, but both are surviving well in the aquarium. Give possible reasons.