When heating chemicals that could be volatile, what would be the best way to conduct this experiment?
at the lab table using a bunsen burner
wearing goggles and a lab apron and having the experiment under the ventilation hood
wearing goggles at the lab table
using a hot plate at the lab table
Answers: 1
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The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2
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Biology, 22.06.2019 00:30
One gene can influence trait(s). one trait can be determined by gene(s).
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Biology, 22.06.2019 08:10
Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?
Answers: 2
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