In which of the following groups of vertebrates is parent...
In which of the following groups of vertebrates is parental care mostly exhibited?
Aves
Reptilia
Amphibia
Mammalia
Correct answer is D
No explanation has been provided for this answer.
Which of the following food substances is digested in the stomach? ...
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The solid part of the ecosystem is referred to as the ...
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Which of the following statements about nitrogen is not correct? Nitrogen is needed for ...