Genetic changes, under control of the Paax6 gene, led to
A. the evolution of one type of eye.
B. one photoreceptor in each modern eye.
C. the evolution of many types of eyes using ommatidia and simple eye structures.
D. a cluster of photoreceptor cells in every eye.
E. none of these are correct
C. the evolution of many types of eyes using ommatidia and simple eye structures.
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Toxic substances accumulate through natural trophic flow of an ecosystem.
Answer the following statement true (T) or false (F)
In which of the following large-scale mutations would the cell lose genetic information?
A. translocation B. inversion C. deletion D. duplication E. All of the choices given would result in genetic information loss.
solution consists of a ________ which dissolves the ________.
Fill in the blank(s) with the appropriate word(s).
Chlorosis in plants is a condition best explained by
A. lack of oxygen. B. lack of soil moisture. C. lack of water. D. lack of carbon dioxide. E. lack of certain minerals.