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Biology, 22.06.2019 06:30
Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food
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Biology, 22.06.2019 08:30
What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna
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Biology, 22.06.2019 13:30
What is used as a template during replication? a- mrna b- trna c- rrna d- dna
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Biology, 22.06.2019 17:00
As the earth formed, the force of gravity increased due to increased mass. what effect did this increased gravity have on the forming planet?
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Compare and contrast alternating current and direct current...
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