3 Which of the following is true about scientific inquiries
OA.
Scientific inquiries usually do not require accuracy or precision when gathering data.
OB.
Scientific inquiries are usually guided by previous scientific principles and knowledge.
OC.
Scientific inquiries never require any mathematical knowledge or the application of mathematics.
OD.
Scientific inquiries are never based on previous scientific research and data.
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during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

is it multiple choice?

producers within ecosystems are essential as they are at the base of the food chain. plants are examples of producers. they use the process of photosynthesis to capture light energy and use it to convert simple inorganic substances (carbon dioxide and water) into organic substances (glucose).