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 chromosomes of members of the kingdom Monera are within the ...
Which of the following structures is not involved in respiration? ...
The relationship between a termite and the protozoam in its intestine is described as ...
The source of the nitrates in the diagram is termed ...
Simple sugars are also called ...
Which of the following insects undergoes incomplete metamorphosis? ...
One of the following is called the emergency hormone in man. ...
When spirogyra cell is immersed in a salt solution more concentrated than its cell sap, it ...
Which of the following terms ensures the survival of an organism in its environment? ...