Archaea that have been cultured in the laboratory include ____
a. Crenarchaeota and Euryarchaeota
b. Crenarchaeota and Korarchaeota
c. Euryarchaeota and Korarchaeota
d. Euryarchaeota and Nanorarchaeota
e. Nanoarchaeota and Korarchaeota
ANSWER: a
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transcript? a. AUGCUU b. ATGCGT c. UACGCA d. UAGCGU e. GCGUUU
Staining is an important part of smear preparation for microscopic viewing. Which of the following staining procedures uses more than one stain?
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Which species of Epsilonproteobacteria is responsible for causing peptic ulcers in humans?
a. Campylobacter jejuni b. Helicobacter pylori c. Myxococcus xanthus d. Pseudomonas aeruginosa
Swordtail fish are known for the long extensions on the males' tails. What types of experiments might help you determine whether the females are using visual input about tail length to choose between males? (Check the best three.)A) Add artificial tails of different lengths to females and determine their response to normal males.B) Add artificial tails of different lengths to male platys (a similar fish without tail extensions) and measure female response.C) Create artificial fish models with different size tails and measure female response.D) Measure hormone levels in males who have different size tails.E) Measure sperm count in males who have different size tails.F) Trim the tails of male fish to different lengths and measure female response.
What will be an ideal response?