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BIOLOGY

Biology
The energy in most ecosystems comes from

Sun
Soil
Carbon dioxide
Water

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Biology
Study of typical behaviour of organisms in their natural habitatis is called

Euthenics
Ethnology
Eugenics
Ehology

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Biology
Which of the following is an example of parasitism?

Ticks that live on dogs
Leeches consume blood of their host
Aphid insects eat the sap of the host plant
All of these

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Biology
________ is the interaction in which one species benefits and the other is neither harmed nor benefited.

Commensalism
Competition
Predation
Parasitism

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Biology
Consider the following statements1. Different plant species grow together2. Light cannot penetrate into the lower strata full of undergrowth Which of the following type of vegetation is characterized by the above?

Mediterranean
Tropical deciduous
Warm temperate broad leaved deciduous
Equatorial moist evergreen

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