Which Trophic Level Forms the Base of a Food Chain

question 3

Multiple Choice

Which trophic level forms the base of a food chain?

• A)primary consumers
• B)quarternary consumers
• C)secondary consumers
• D)primary producers
• E)tertiary consumers

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Definitions:

Gel Electrophoresis

A technique used to separate DNA, RNA, or proteins based on their size and charge by applying an electric field to a gel matrix.

Template Strand

The strand of DNA that serves as a guide for the synthesis of complementary RNA molecules during transcription.

Color-Labeled Nucleotides

Nucleotides, the basic building blocks of DNA and RNA, which have been chemically labeled with fluorescent dyes, used in molecular biology techniques for sequencing or identifying nucleic acids.

DNA Library

A collection of DNA fragments that are stored and preserved for the purpose of studying their sequences.