Allele frequencies can change across the geographic range of a species according to climate, geological features, or direction in the range
For instance, a certain allele frequency might go up along with the elevation or down as you go south in the species' range. This systematic change in frequency is referred to as A) genetic drift.
B) q2.
C) directional selection.
D) a cline.
E) heterosis.
D
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All cells have what three following things
a. Mitochondria, enzymes, and nucleic acid b. Cell membrane, cytoplasm, DNA c. Bacteria, microtubules, organelles d. RNA, DNA, nucleus.
The method of reasoning that uses construction of general principles by careful examination of many specific cases is called:
A. experimental reasoning. B. theoretical reasoning. C. inductive reasoning. D. hypothetical reasoning. E. deductive reasoning.
What is the difference between the upper reaction and the lower reaction in the figure?
1.The upper reaction is light-dependent while the lower is not.
2.The lower pathway is cyclic while the upper is not.
3.The upper reaction takes place in the thylakoid membrane while the lower does not.
4.Energy from the lower reaction is converted into glucose, while energy from the upper reaction is used to produce carbon dioxide and water.
Being a heterotroph means ________
A) making your own food from the sun B) making your own food from oxygen C) obtaining your food by eating other organisms D) obtaining your food by photosynthesis