The pioneer organisms in ecological succession are usuall...
The pioneer organisms in ecological succession are usually the
mosses
lichens
ferns
algae
Correct answer is B
No explanation has been provided for this answer.
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The following are connected with the movement of a reflex action (1) Central nervous (2) Muscles...
In the diagram, the population size of species II on the 20th day is ...
The nephridia in the earthworm form part of the ...
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Bacteria in the large intestine of man are important in the ...