Biologists currently recognize ________ different kingdoms.
Fill in the blank(s) with the appropriate word(s).
6
As per the current system of classification, biologists recognize six kingdoms.
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Which of the following is NOT a domain?
A. Eukarya. B. Archaea. C. Protista. D. Bacteria. E. Both Bacteria and Protista.
Of the proteoglycans associated with the extracellular matrix in vertebrates, which of the following is associated with the lubrication of joints?
A) chondroitin sulfate B) glucuronate C) hyaluronate D) keratan sulfate E) mucoproteins
Which of the following statements is correct?
A. Only a few plants maintain a mycorrhizal relationship. B. All plants maintain a mycorrhizal relationship. C. Most plants maintain a mycorrhizal relationship. D. Some plants maintain a mycorrhizal relationship.
You are asked to study a new species, and you are presented with a miniscule amount of DNA from that species. If you do not find a way to increase the volume of the DNA sample, you will not be able to work with the sample at all. which of these techniques amplifies DNA?
A. electrophoresis. B. PCR. C. DNA fragmentation. D. cladistics.