How many chambers does the frog heart have?
a. one.
b. two.
c. three.
d. four.
d
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While other types exist, Type II restriction endonucleases are by far the most commonly used enzymes for genetic engineering
Indicate whether the statement is true or false.
Compound A is a ____________________.
Assume that you are taking an organic chemistry class. Your teacher has given you four organic compounds to analyze. She tells you that one is a carbohydrate, one is a hydrocarbon, one is a nucleic acid, and one is a protein. Compound A contains only carbon and hydrogen. Of the four types of compounds which were given to you to analyze, which one best describes Compound A?
An example of an animal with a long digestive tract and molars with large, ridged surfaces is a ____
a. cat b. deer c. dog d. shark e. tiger
The carrying capacity (K) of a population can vary depending on the supply of resources
Indicate whether the statement is true or false