Answer:
Option D
Explanation:
Given
Justin has type A blood . Both the parents of Justin has AB blood type
Brittany has type B blood and both the parents of Brittany has AB blood type
This make it clear that -
Genotype of Justin is AA
Genotype of Brittany is BB
Now if Justin is crossed with Brittany , following blood groups in offspring is possible -
AA * BB
AB, AB, AB, AB
Thus, none of the offspring will have A blood group. Thus the chances that Justin and Brittany's son has type A blood is 
%
Option D is correct
Answer:
True! Hair follicles divide faster than any other cell in the body.
Explanation:
Plants also have adapted to the Arctic tundra by developing the ability to grow under a layer of snow, to carry out photosynthesis in extremely cold temperatures, and for flowering plants, to produce flowers quickly once summer begins. A small leaf structure is another physical adaptation that helps plants survive. Plants lose water through their leaf surface. By producing small leaves the plant is more able to retain the moisture it has stored.
