Transparent Exopolymers

question 23

Multiple Choice

Transparent exopolymers

• A) Are secreted by zooplankton to attract prey
• B) Cause dissolved nutrients to stick together and increase nutrient uptake
• C) Are secreted by phytoplankton cells
• D) Arise mainly in gyre centers

---

Definitions:

Independent Variable

In experimental research, the variable that is manipulated by the researcher to examine its effect on the dependent variable.

Experimental Study

A research method where the researcher manipulates one variable to determine if it causes a change in another variable, within a controlled environment.

Dependent Variable

The variable in an experiment that is expected to change as a result of changes made to the independent variable.

Observational Evidence

Information and data gathered through observing phenomena without manipulating variables, often used in studies where controlled experiments are not feasible.