Pls help asap with 13 Human blood type is determined by multiple alleles (A, B, and O). Which phenotypes would be expected for the offspring of a man with Type AB blood and a woman with Type O blood?
A. 50% Type A, 50% Type B
C. 50% Type AB, 50% Type O
B. 50% Type A, 50% Type o
D. 50% Type B, 50% Type O

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

Ascientific idea becomes valid when it is what?