L Which part of a root consistsof tough (schlerenchyma) cells and protects the root as it grows through the ground?

What answer

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igneous rock formed from below the surface would have more crystals because

answer: because magma cools more slowly than lava

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

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