A toad that eats a bee and is stung tends to avoid eating bees afterward. This is an example of ________ learning
Fill in the blank(s) with correct word
trial-and-error
Biology & Microbiology
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RNA polymerase III of eukaryotes is responsible for transcribing ________.
A. rRNA B. tRNA C. mRNA D. All of the choices are correct.
Biology & Microbiology
What is the optimum pH of most enzymes?
a. 1 b. 3 c. 5 d. 7 e. 9
Biology & Microbiology
The pyloric sphincter, the circular muscle that controls the entrance of food from the stomach to the
small intestine, usually opens only slightly. What is the purpose of this?
What will be an ideal response?
Biology & Microbiology
Urine leaves our body through the urethra.
a. true b. false
Biology & Microbiology