The largest hole in the ozone layer occurs in the stratospheric layer over
A) the Amazon rainforests.
B) the eastern coast of the United States.
C) the western coast of the United States.
D) Africa and South America.
E) Antarctica.
E
You might also like to view...
Which of the following pairs is mismatched?
A. Poison ivy dermatitis - type IV hypersensitivity B. Transfusion reaction - type II hypersensitivity C. Serum sickness - type III hypersensitivity D. Food allergy - type I hypersensitivity E. Hay fever - type IV hypersensitivity
The eastern meadowlark and the western meadowlark are two bird species that look very similar to each other. Why do biologists not consider them the same species?
A. The two species experience the reproductive barrier of habitat isolation. B. Species are not determined by appearance but by their ability to interbreed naturally. C. The two species do not live in the same habitat and thus do not interbreed in nature. D. All of the above are correct.
The gene that encodes small-subunit ribosomal RNA is useful for reconstructing the phylogeny of all organisms, because ________
A) the gene is subject to strong stabilizing selection B) the gene's function has stayed unchanged in all organisms C) all organisms have ribosomes with similar composition and structure D) all organisms have the gene E) All of the above.
Proteins that act as ____________________ catalyze biochemical reactions and are vital components of the cell’s
metabolic pathways. Fill in the blank(s) with the appropriate word(s).