Contact dermatitis is a type (I/II/III/IV) hypersensitivity disorder.
Fill in the blank(s) with the appropriate word(s).
IV
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The increased acidity of seawater can harm marine life by making ____ available to organisms that require it
a. less nitrogen b. more sulfur dioxide c. less carbon dioxide d. more methane e. less calcium carbonate
The zygote is converted into the morula in the ____
a. ovary b. uterus c. vagina d. oviduct e. cervix
The difference between presumptive and confirmatory data in specimen identification is that
A. presumptive data affords a preliminary identification such as the genus, and confirmatory data identifies the species of the organism. B. presumptive data is more accurate than confirmatory data. C. presumptive data is an educated guess whereas confirmatory data identifies the specific genus and species of the organism. D. presumptive data identifies the species, and confirmatory data identifies the genus of the organism.
What feature of genetic mutations can eventually lead to the evolution of new species?
A. Mutations always produce harmful effects. B. Mutations never affect protein structure or function. C. Mutations are not a mechanism through which biological evolution occurs. D. Mutations always produce beneficial effects. E. Mutations produce changes in the DNA sequence of a gene.