What is the most difficult part of a controlled experiment?
testing only one variable
testing two variables
testing multiple variables
testing zero variables

Explain the importance of producers, primary consumers, secondary consumers. and decomposers in an ecosystem

Which must be kept in mind when determining if an explanation is correct? check all that apply.which must be kept in mind when determining if an explanation is correct? check all that apply.

Pls quickly! which of the following is true about the behavior of an organism? a. the behavior of an organism is influenced by both its heredity and it’s environment. b. the behavior of an organism is influenced only by the treats it inherits from its parents. c. the behavior of an organism is influenced only by the environment in which it lives in. d. the behavior of an organism is not influenced by either it’s heredity or its environment.