The mammalian organ through which nourishment and oxygen ...
The mammalian organ through which nourishment and oxygen diffuse into a developing embryo is called
Amnion
Chorion
Umbilical cord
Oviduct
Placenta
Correct answer is E
No explanation has been provided for this answer.
The following are ways of preserving food EXCEPT ...
Which of the natural resources are renewable? ...
Which of the following are the final products of aerobic respiration? ...
A distinguishing feature of mammals is the possession of ...
Which of the following may not contribute to environmental pollution? ...
Conservation of wild life is necessary mainly because ...
The maintenance of a constant internal environment in an organism is known as ...
A sugar solution was boiled with fehling’s solution A and B and the colour remained blue. The ...