Which conclusion do the data best support?
1.one year is an adequate time frame to show the effects of treatment on fire ant populations
2.fire ant populations develop resistance to pesticides
3.fire ant populations have natural ups and downs
4.fire ants are long-lived organisms
2
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You are studying two traits in fruit flies: 1. eye color where there are two colors, brown and red 2. wing shape where there are straight and curled phenotypes
You mate two flies that are heterozygous for the genes that control both of these traits and get the following phenotypes in the following ratio: 9 red and straight; 3 red and curled; 3 brown and straight; 1 brown and curled Which phenotypes are dominant? What will be an ideal response?
What does one call a mutation that occurs in a DNA sequence that changes the amino acid specified by that sequence?
What will be an ideal response?
Mosses are limited to moist environments because they
A. have large roots. B. have sperm that swim. C. do not have leaves. D. produce eggs.
Lipid in plasma membranes that contains an attached carbohydrate chain; assembled in the Golgi apparatus.
What will be an ideal response?