Lichens are typically the first organisms to colonize bare rock. They are therefore the pioneer species in primary succession. Many organisms require soil before they can colonize an area. Lichens that colonize bare rock secrete acids that break down the rock and start the soil-production process.
to make the test fair and to make sure that you didnt make a mistake i.e. if you have an anomyous result
The female reproductive system<span> provides several </span>functions<span>. The ovaries produce the </span>female<span> egg cells, called the ova or oocytes. The oocytes are then transported to the fallopian tube where fertilization by a sperm may occur.</span>
Answer:
D. build them up and breaks them down
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The answer is TRUE!
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