Red tide and extensive fish kills are caused by population blooms of
a. euglenoids.
b. dinoflagellates.
c. diatoms.
d. ciliates.
e. brown algae.
B
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In a chemical reaction, glyceraldehyde-3-phosphate + NAD+ yields 1,3-bisphosphoglycerate + NADH. In this reaction, what happened to NAD+?
A. It was oxidized to form NADH B. It was reduced to form NADH C. It was activated to form NADH D. it served as an enzyme to catalyze the reaction, and at the end of the reaction formed NADH Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about oxidation and reduction chemical reactions? What other information is related to the question? Choose Answer Do you have all the information needed to determine the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Why is the absence of bone in Chondrichthyes considered a derived trait?
What will be an ideal response?
Which technique is used to help reduce experimenter bias?
A) Create experiments that are reproducible and repeatable. B) Control extraneous variables as much as possible. C) Include a control group in your experiment. D) Be aware of potential placebo effects. E) Keep the experimenter blind to the conditions in an experiment or its purpose.
DNA replication proceeds in one direction around the bacterial chromosome.
Answer the following statement true (T) or false (F)