Biology, 08.11.2020 06:50 tessthetoast
Photosynthetic pigments can be separated using a technique
called paper chromatography. Which of the following
statements is false regarding this technique?
O A solvent is needed to move the molecules up the
chromatography paper.
Water was used as the solvent to separate the various pigments.
The smaller molecules moved faster and further up the
chromatography paper after a certain amount of time
The paper chromatography can be used to separate all
photosynthetic pigments not just chlorophyll.
Answers: 3
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Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils
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What type of graph presents information about how often certain or traits occur?
Answers: 1
Biology, 22.06.2019 17:00
Some species of wasps are social. the queen starts a colony from scratch each spring. she builds a small nest, and lays and raises a group of female workers. the workers enlarge the nest while the queen continues to lay eggs. unfertilized eggs become males that mate with newly hatched females. all of the wasps except the newly fertilized females die by the summer. which best describes this behavior? a)it is beneficial only to the males that do not fertilize eggs. b)it is beneficial only to the female workers that are not fertilized. c)it is beneficial to each one of the individual colony members. d)it is beneficial to the whole species, but not to all of the individual members.
Answers: 1
Photosynthetic pigments can be separated using a technique
called paper chromatography. Which of th...
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