A brown fruit fly was crossed with a black fruit fly as shown below. What is the probability of a resulting offspring being black?

A.
100%

B.
75%

C.
25%

D.
50%

What is the 77 element on the periodtic table

The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?

During photosynthesis, hydrogen ions are most directly used to in the chloroplast pictured above. a) make glucose b) make chlorophyll c) produce carbon dioxide d) drive the production of atp