Environmental Science
What is hibernation and aestivation?

none
Thermal adaptation shown by animals
wind adaptation shown by animals
adaptation of animals to escape from predators

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Environmental Science
Which of the following regarding ecological pyramids is not correct?

In most ecosystems, the pyramid of numbers and biomass are up right
The pyramid of energy expresses mainly the rate of food production
The total energy flow at successive tropical level always decreases
In deep water ecosystem, the pyramid of biomass is upright
In tree dominated ecosystem the pyramid of numbers is inverted

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