Animal studies show that
a. hormonal treatments during the prenatal period have no effect on male or female aggression levels.
b. androgens administered to female animals during the prenatal period subsequently increase aggression.
c. estrogen administered to male animals during the prenatal period subsequently increases aggression.
d. estrogen administered to female animals during the prenatal period subsequently increases aggression.
Question 2
Because the umbilical cord continues to pulse after birth, in many societies the umbilical cord is cut off
a. immediately after delivery c. just before leaving the hospital
b. several minutes after birth d. a week post delivery
A micrograph of the cell coat or glycocalyx of an animal cell.
animal cell
Hormonal and nervous factors influencing blood pressure
Effect of Landfall
The effect of thermal expansion
Examples of animal digestive systems.