What does fossil evidence allow scientists to determine?
What will be an ideal response?
When the organisms lived relative to each other
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All the following can cause contact dermatitis EXCEPT
A) jewelry. B) latex gloves. C) poison ivy. D) superantigens.
Which of the following is not an emerging virus?
A. HIV B. SARS C. influenza D. Epstein Barr E. All of these choices are emerging viruses.
You drive a nail into a tree that is 10 feet tall so that 5 inches of the nail is showing. You come back 10 years later. The tree is now 30 feet tall and only 3 inches of the nail is showing. This is because secondary growth of the tree is from the
A. root tip. B. intercalary meristem. C. apical meristem. D. lateral meristem. E. node.
Bioinformatics can be used to scan for short sequences that specify known mRNAs, called _____
A) expressed sequence tags B) multigene families C) proteomes D) short tandem repeats