Biology, 17.03.2020 00:30 joelpimentel
Alexander Fleming kept finding mold contamination that was killing his bacterial cultures. This observation eventually lead to the development of the antibiotic penicillin. Why would a fungus produce a compound that is selectively toxic to bacteria?
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Biology, 21.06.2019 15:00
Metamorphic rocks are formed when sedimentary or igneous rocks are subjected to heat or pressure and recrystallize without melting. which of the following rocks results from the metamorphism of limestone? a. granite b. slate c. sandstone d. marble
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Biology, 21.06.2019 22:20
Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3
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Biology, 21.06.2019 23:40
Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere
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Biology, 22.06.2019 04:00
Of your good in bio kusing a series of preliminary observations; pstate a problem developed from these observations, formulate a hypothesis, design an experiment to test the hypothesis
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Alexander Fleming kept finding mold contamination that was killing his bacterial cultures. This obse...
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