Concept explainers
To design: A study to determine whether two groups of mice living on the opposite sides of the river belong to the same species.
Concept introduction: Maximum studies in biodiversity involve field studies than lab studies, as it includes studies involving habitat fragmentation, demographic changes, mortality, fecundity, and many more. Therefore, best results will be obtained only when those studies are done on field. When animal studies are conducted where more than two species are to be studied, their
To explain: Mice captured from one field study and taken to lab will affect the experimental design for the field study or not.
Concept introduction: Maximum studies in biodiversity involve field studies than lab studies, as it includes studies involving habitat fragmentation, demographic changes, mortality, fecundity, and many more. Therefore, best results will be obtained only when those studies are done on field. When animal studies are conducted where more than two species are to be studied, their phenotypic characters are taken for studies to differentiate species initially.
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Campbell Essential Biology with Physiology (5th Edition)
- Please provide a tentative description for the given hypothesis (a bit detail will help)arrow_forwardThe table here is based on the published results of the study discussed in the chapter. It shows the number of bacterial phylotypes (kinds of bacteria) that were found on a particular percentage of people. a. How many bacterial phylotypes were found on only 10 percent or fewer of the people sampled? How many were found on more than 90 percent of people? b. How many phylotypes were found on more than half of the people sampled? c. Describe in one or two sentences the frequency of phylotypes found in the study. Were most phylotypes rare or common?arrow_forwardA team of researchers is interested in testing the amount of oxygen gas (O2) produced when the same species of plant is exposed to different colors of visible light. The research team has developed a hypothesis to test and designed experimental conditions to run. They have submitted the work to you for feedback and approval. Your job is to provide feedback concerning both the hypothesis and the experimental design. This will enable them to make the necessary changes to obtain approval for their research. The Team’s Hypothesis: The levels of oxygen gas will be higher for plants exposed to visible red light. How would you improve the hypothesis while also putting it into a proper hypothesis with an IF and THEN statement?arrow_forward
- The selection of sites for sampling must be A. selected and sampled from largest area to smallest. B. carefully selecting for specific features by the researcher. C. methodical and must all be within close proximity to each other. D. random.arrow_forwardWhich of the following is not mentioned by Marder (2011) as a category of experimental research? A. Developing a mathematical model of a biology process B. Measuring a value C. Measuring a relationship between variables D. Using computers for analysis E. Improving and industrial productarrow_forwardWith the hypotheis that sunlight has a positive ffect on animal diversity Results compared to other work. How can your results be explained with respect to other people’s work? Or what would be expected from similar habitats? Additional discussion questions. Answer the following questions when writing your short discussion, think of What is the next logical step to further the results from your study? ❖ If you collected animal data at a different time of the year, would we get the same Diversity Index calculations? Why or why not? ❖ An area with lots of weeds might score a high Diversity Index. Does a high Diversity Index always mean a habitat is healthy? Why or why not? ❖ What are some limitations or problems with random sampling to calculate diversity?arrow_forward
- If you were to critique Cesare Lombroso's early biological positivist approach -- What criticism would you make of his work?arrow_forwardPropose a hypothesis that this experimental design adequately testsarrow_forwardHow can evidence from an experiment be explained in relationship to the hypothesis?arrow_forward
- Pillbugs are placed in a container where they have a choice of a wet or a dry environment. Researchers record how much time was spent on each side. what is the control group and the experimental group.arrow_forwardWhat is a dichotomous key? How could you go about constructing your own dichotomous key for a random collection of organisms in the wild?arrow_forwardIdeally, an experimental group differs from a control group (a) only with respect to the hypothesis being tested (b) because its subjects are more reliable (c) in that it is less subject to bias (d) in that it is less vulnerable to sampling error (e) only with respect to the variable being studiedarrow_forward
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning