dependent-germination 選擇正確的詞語 1 Batches of seeds are soaked in salt solutions for different concentrations and germination is counted for each batch. What is the independent and dependent variables? 2 Light absorption by a pigment is measured for red, blue, green, and yellow light. What ...
Definition and Importance of Variables in Experiments Variables refer to the factors in the experiment that can change. Examples include temperature, weight, height, life expectancy, and growth rate. There are also different types of variables, such as the independent, dependent, and control variables...
One simple way to explore independent and dependent variables is to construct a biology experiment with seeds. Try growing somesunflowersand see how different factors affect their growth. For example, say you have ten sunflower seedlings, and you decide to give each a different amount of water e...
She is also certified in secondary special education, biology, and physics in Massachusetts. Let's review what we've learned. Variables are criteria in an experiment that can be changed or measured. The outcome of an experiment, or what is being measured, is called the dependent variable. ...
when compared to the dependent variables of achievement performance, attitude and attrition in audio-tutorial (A-T) biology.; Students who self-selected to participate in the study (n = 785) were asked to provide information on age, gender, ethnicity, previous academic achievement and present att...
Besides independent and dependent variables, every good experiment needs to control certain variables so that they do not influence the outcome of the experiment systematically. A controlled variable is one that you keep the same for all the conditions of your experiment. A good scientist needs to...
There is a standard method for graphing independent and dependent variables. The x-axis is the independent variable, while the y-axis is the dependent variable. You can use theDRY MIX acronymto help remember how to graph variables: DRY MIX ...
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Students are often asked to identify the independent and dependent variable in an experiment. The difficulty is that the value of both of these variables can change. It is even possible for the dependent variable to remain unchanged in response to controlling the independent variable. ...
Variables such as abundance and diversity often behave unpredictably at one level of resolution but produce predictable patterns at another (e.g. Sale 1980, Sutherland 1981, Sollins et al. 1983, Victor 1986, Powell 1989, Wiens 1989, Bailey 1990, Carpenter & Leavitt 1991). For example, the ...