Biology, 30.06.2019 13:30 alyssa2157
In science class, maria observes that a white-colored flower has shades of red when it’s watered with red-colored water. she forms a hypothesis that the color reaches the flower through the stem. what should maria do to confirm the hypothesis? she should repeat the experiment with the same type of flower and photograph the changes over time. she should ask her science teacher about the flower to confirm whether her hypothesis is correct. she should try the experiment with a potted plant with roots and observe any color changes. she should repeat the experiment with a different species of plant and photograph the changes.
Answers: 2
Biology, 21.06.2019 17:00, zanaplen27
Ascientist and her team counted 200 individual deer in an area of 10 square kilometers. what is the population density?
Answers: 1
Biology, 22.06.2019 03:00, longoriafaithe09
In 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? in 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? staphylococcus aureus bacteria that were able to synthesize cell walls using a protein that was not affected by methicillin survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, some bacteria began to synthesize cell walls using a protein that was not affected by methicillin. these bacteria survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, bacterial populations gradually began to synthesize cell walls using a protein that was not affected by methicillin.
Answers: 3
Biology, 22.06.2019 03:30, lildanielmabien
How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures
Answers: 1
In science class, maria observes that a white-colored flower has shades of red when it’s watered wit...
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