Walking Through a Remote Tropical Forest,you Discover a Bright,round Object

question 9

Multiple Choice

Walking through a remote tropical forest,you discover a bright,round object about the size of a golf ball.It smells sweet and,when you cut it open,you see a collection of seeds inside white,juicy flesh.From this,you conclude that you have discovered a fruit.The seeds from this fruit are most likely dispersed by _______.

• A) wind
• B) water
• C) hummingbirds
• D) ballistics: seeds are shot out of the fruit by water pressure
• E) an animal who eats the fruit and deposits the seeds in feces

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Definitions:

Dependent Variable

A variable in an experiment or model whose changes depend on the effects of other variables.

Independent Variable

A variable that is manipulated to determine its effect on a dependent variable.

Critical T Value

The threshold value in t-testing that determines whether to reject the null hypothesis, based on the desired level of significance.

Significance

The likelihood that a relationship between two or more variables is caused by something other than random chance.