The figure below shows what happens in insect populations when crops are sprayed with insecticides. This is an example of ________.
A) natural selection
B) genetic drift
C) founder effect
D) gene flow
Answer: A) natural selection
You might also like to view...
Lipids that form membranes have what kind of structure?
A) completely nonpolar, because they are lipids B) completely polar, which allows them to dissolve in water C) polar heads and nonpolar tails; the nonpolar tails interact with water D) polar heads and nonpolar tails; the polar heads interact with water
The covalent linkage between nucleotides is referred to as a(n) ____ bond
Some help with this? Thank you.
What mutations occurred in typical icefish that prevented production of hemoglobin?
A. fragmentation of both the alpha and beta genes B. deletion of the alpha gene and fragmentation of the beta gene C. deletion of both the alpha and beta genes D. fragmentation of the alpha gene and deletion of the beta gene E. destruction of red blood cells in the bone marrow
Chitin is a polysaccharide with __________ atoms
attached to the glucose backbone. a. magnesium b. phosphorus c. potassium d. nitrogen e. sulfur