At what stage in the life history of a mammal is the sex ...
At what stage in the life history of a mammal is the sex of an individual set?
at adolescence
at puberty
at birth
at conception
Correct answer is D
The sex of a baby is determined by its chromosome make-up at conception.
The parts used for feeding is labelled ...
Blood carrying digested food from the small intestine flows into the liver via the ...
The use and disuse of body parts and the inheritance of acquired traits were used to explain ...
I. Onchocerciasis II. Schistosomiasis III.Salmonellosis IV. Meningitis Which of the diseases lis...
Which of the following organs is primarily responsible for excretion in humans? ...
Individuals with blood group AB can donate blood to individuals with blood group(s)___________? ...
The structure of the cell membrane is a ...
What name is given to a sudden change in a gene or chromosome? ...
The blood vessel that supplies blood rich in digested food to the liver is the ...