The images show two species of tree frogs in a particular region. The gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. The gray frog was abundant in the woodlands. Because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. In such a case, the population of gray tree frogs will likely decrease . The gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. This suggests that speciation occurred because of
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Biology, 21.06.2019 20:00
Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data
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Biology, 22.06.2019 06:20
The activity of the modern sample is 1.10 bq . how long does that measurement take?
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Biology, 22.06.2019 13:30
Stem cells found adult tissue such as in bone marrow brain muscle skin and liver are only capable of what
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Biology, 22.06.2019 14:30
The diagram shows the development of the oocyte and the follicle during the menstrual cycle. identify at which stage in the cycle the hormone levels are at their highest and most active.
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The images show two species of tree frogs in a particular region. The gray tree frogs are adapted to...
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