The centre for learning and memory in the human brain is
medulla oblongata
cerebellum
cerebrum
olfactory lobe
Which of the following materials is not easily biodegradable?
Polythene bag
Cotton bag
Hides and skin bag
Paper bag
The gradual cumulative, adaptive and heritable changes in an organism over a long period of time resulting in new species is called
Adaptation
Survival
Organic evolution
Interspecific competition
The association between two organism in which one of the organism gains and the other loses is referred to as
saprophytism
commensalism
mutualism
parasitism
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