amandavertre
19.07.2019 •
Biology
Astudent is doing an experiment to test the research question: "how does the amount of fertilizer affect the rate of growth of soybeans? " when her experiment has been completed, she collects the data and constructs a line graph. what variable should be placed on the y-axis? a) growth period b) amount of fertilizer c) rate of soybean growth d) number of soybeans in the experiment
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Ответ:
C) rate of soybean growth
Explanation:
A independent variable is the one which can be altered in an experiment the effect of such alteration can be observed on the dependent variable.
In a particular comparative analysis, the independent variable is present on the x-axis and the dependent variable on the y-axis of the graph.
In the graph, the rate of soybean growth will be placed on the y-axis as it is a dependent variable. The amount of fertilizers should be on the x-axis as it is the independent variable.
Ответ:
C) rate of soybean growth
Explanation:
In the Cartesian plane, the variable that is placed on the x axis is the independent variable. The independent variable is one that does not need any factor for its existence and determines the changes in the dependent variable. In this case, the independent variable is the amount of fertilizer used in the experiment.
In the same Cartesian plane, the y axis must be occupied by the dependent variable. The dependent variable is the one that depends and is influenced by the independent variable. In the experiment shown in the question above, the amount of fertilizing influences the soybean growth rate, so the soybean growth rate is the dependent variable.
Ответ:
Human activity has greatly distorted the ecosystems in the environment which resulted to invasive species.
Invasive species can threaten an ecosystem and the biodiversity of the organism that exist in the present environment when the invasive species increase rapidly in number.
Exotic species are a threat to biodiversity because they alter the ecosystem of that area. They share food and habitat resulting in unbalanced ecosystem. Also, habitat destruction destroys the habitat of all the life forms in that area.