Which of the following is not key evidence in support of the idea that all life today shares a common ancestor?
A) Mapping of gene sequences shows how life is all related.
B) All life builds proteins from the same amino acids and uses ATP to store energy in cells.
C) We have identified fossils of the first life forms that ever existed on Earth.
D) All life uses DNA and the same genetic code.
Question 2
Which pair of ball-drop experiments will best test whether mass affects the acceleration of gravity?
Exp 1. Mass 0.5 kilograms, height 20 meters
Exp 2. Mass 5.0 kilograms, height 20 meters
Exp 3. Mass 0.5 kilograms, height 30 meters
A) Exp 1 and 3 B) Exp 1 and 2 C) Exp 2 and 3
Experimental evidence of the effect of allelochemicals on plant production.
European wildcat feeding its kittens, as illustrated in Brehm's Life of Animals
Lewis Hine’s 1910 photograph shows a tenement alley in New York City. More famous for his “unsettlin
Figure of a Woman with a Drawing Showing Evidence of Original Painting and Outlining Design Scheme
Life Expectancy versus GDP per Capita
Historical Life Expectancy