Can you answer these please:)
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Biology, 22.06.2019 11:00
Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2
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Biology, 22.06.2019 13:10
Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.
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Biology, 22.06.2019 14:40
Genes that come together with different alleles are heterozygous. homozygous. genotype. segregated.
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Biology, 22.06.2019 16:00
Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems
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Mathematics, 17.10.2019 01:30
Chemistry, 17.10.2019 01:30
Geography, 17.10.2019 01:30
Mathematics, 17.10.2019 01:30
English, 17.10.2019 01:30
English, 17.10.2019 01:30
Mathematics, 17.10.2019 01:30