Which of the following substances from the mother's b...
Which of the following substances from the mother's blood diffuses through the placenta into the blood vessels of the feotus?
Carbon dioxide and oxygen
Glycogen and starch
Urea and carbon dioxide
Glucose and oxygen
Digested food and carbon dioxide
Correct answer is D
No explanation has been provided for this answer.
The best time to pluck the leaf for the experiment is ...
The activity of ptyalin is likely to decrease with an increase in concentration of ...
The structure labelled A represents the ...
The role of the scolex in tapeworms is to ...
Some of the features of an animal are scales, teeth, nares, and backbone. The animal is likely ...
The soil type that will be most difficult to plough in wet season is one that is ...
Which of the following conclusions cannot be drawn from the graphs? ...
An individual in the AB blood group is a universal recipient for blood donation because ...