Biology, 30.07.2019 04:30 hugbug2554
Plastics are artificial substances. however, the materials needed to produce plastics are often crude oil. which is a reasonable conclusion based on this fact? a. plastics require oil and therefore will be lighter than any other material b. plastics require oil and therefore must be more costly to use than other material c. plastics require oil and therefore are renewable resources d. plastics require oil and therefore are nonrenewable resource
Answers: 1
Biology, 21.06.2019 16:30
Which best explains why viruses do not have special structures or enzymes that allow them to make their own food? viruses can use energy in living cells that they infect. viruses can replicate inside a host that they infect. viruses can cause contagious illnesses in host cells. viruses integrate their rna or dna into infected cells.
Answers: 1
Biology, 21.06.2019 17:00
What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?
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Biology, 22.06.2019 04:00
Number and variety of living organisms includes genetic, species, and ecological types
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Plastics are artificial substances. however, the materials needed to produce plastics are often crud...
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