Figuer: 
-In figure (b) ,what was the independent variable?
A) the age of the fish
B) the generation
C) the mean weight of harvested fish
D) the size at which the fish were harvested
E) the species of fish
Correct Answer:
Verified
Q40: Raising small beetles for several generations,a distinctive
Q41: Babies that are at a low birth
Q42: Natural selection acts on
A) alleles.
B) genotypes.
C) populations.
D)
Q43: Figuer: Q44: Carriers of cystic fibrosis have some protection Q46: The founder effect occurs when Q47: The bottleneck effect occurs when Q48: Darwin's theory was strongly founded on the Q49: A population declines when Q50: Figuer: 
A) large groups
A) small groups
A) reproductive rate exceeds
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