Robert and Susan are married and have 2 children, one son and one daughter. The children have different hair colors and eye colors. Which of the following statements explains these
differences in the children?
A) The environment affects these children before their birth
B) Hormone changes in a pregnant woman's body cause traits to develop differently in fertilized egg
C) Sexual reproduction produces fertilized egg that has a unique genetic make-up
D) There is a lack of variation in the genes of the parent's sex cells

Suppose a suitcase has a mass of (m) 30 kg and a net force (n) of 10 kg*m/s. what is the acceleration rate of the suitcasein m/s? show your work to support your answer

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c. carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit

Locards exchange principle implies all of the following except