What is a standard probability that is accepted by most researchers as statistical significance?
A) 10%
B) 5%
C) 0.05%
D) 0.01%
B
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Genetic manipulation has been useful in restoring the numbers of __________ in the United
States.
a. black-footed ferrets b. chestnut trees c. California condors d. Siberian tigers
The following is a list of events involved in the activation of a cell by a steroid hormone. Which one of the following answers best represents the order in which the steps occur?
1. cellular response to the hormone 2. activation of a gene 3. formation of a hormone-receptor complex 4. diffusion of the hormone through a target cell membrane 5. production of a protein A) 4, 3, 2, 5, 1 B) 2, 5, 4, 3, 1 C) 5, 3, 4, 1, 2 D) 2, 5, 1, 3, 4 E) 4, 3, 2, 1, 5
A water molecule could move all the way through a plant from soil to root to xylem to leaf to air and pass through a living cell only once. This living cell would be a part of which structure?
A. a guard cell B. the root epidermis C. the endodermis D. the root cortex
In the biosynthesis of nucleotides, pyrimidines are assembled starting with ribose-5-phosphate while ribose-5-phosphate is added after synthesis of the nitrogenous base for purines.
Answer the following statement true (T) or false (F)