Fad are product the seldom serve a useful purpose but often very popular for a short time.
Both parents would also be recessive to that gene
Normally the molecule is RNA or DNA.
The answer for 17 is the germ theory of disease
The answer for 18 is increased soil erosion
The answer for 19 is bubonic plague
The answer for 20 is regenerate
The answer for 21 is historical food of the Incas
The answer for 22 is expansion of arable land
The answer for 23 is microorganisms
The answe for 24 is pollution
<span>comparisons of DNA and proteins</span>