Competitive release is most likely to occur when a
A) species colonizes an island that already has potential competitors.
B) species moves into new habitats that it never occupied on a mainland.
C) species decreases in abundance.
D) competing species is added to a community.
B
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Which part of the ear will contain the organ of Corti?
a. Outer ear b. Middle ear c. Cochlea d. Eardrum e. Oval window
Organisms that have been genetically altered to carry a foreign gene are said to be transgenic
1.True 2.False
Amino acids are the building blocks for
a. proteins. b. carbohydrates. c. nucleic acids. d. fats. e. steroids.
Which of the following is a good example of two genes that are orthologous?
A) the promoter and the repressor genes of the lac operon in E. coli B) the genes for the first two enzymes in the glycolytic pathway C) the gene for the photosynthetic enzyme RuBisCO in a fern and in an oak D) the human gene for the cell surface protein Siglec-12, and the human pseudogene Siglec-13 E) None of these pairs are orthologous.