A man has blood group A and his wife has blood group B. Their first child has blood group AB and the second child has blood group O. What can one conclude
about the blood groups of their future children?
(3)
I
(9)

This is collection of data made by comparing objects in standard units. in science, the units are metric.

Hairs that clean dirt out of the air in your nasal passages are called: a. sinus b. trachea c. cilia d. mucus

Aremote community desperately needs more electrical energy. it is located in an area with the following characteristics: average wind speed of 15 – 20 km/hr some medium-sized rivers with slow-moving currents few coal deposits some oil exploration being conducted within 400 miles based on the above information, which energy source would be the most economical and safest for the community to pursue? a. fossil fuel b. hydroelectric c. nuclear d. wind