The above picture is of a shoeprint with blood on it. what type of contact bloodstain is this?
a) wipe
b) swipe
c) transfer
d) cast off

Afamily has a y-linked disease that affects the father. what is the chance of a male offspring inheriting the same disease? oa. 100% ob. 50% oc. 25% d. 0%

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.