MCQ
Haemoglobin is a
- ACopper containing pigment
- ✓Iron containing pigment
- CMagnesium containing pigment
- DCalcium containing pigment
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$(i)$ It is the basic unit of classification.
$(ii)$ It is defined as the group of individuals which resemble in their morphological and reproductive characters and interbreed among themselves and produce fertile offsprings.
$(iii)$ Human beings belong to the species sapiens which is grouped in the genus Homo.